一年级口算题大全对于一年级学生来说,是非常重要的教学资源。口算是基础数学能力的培养的重要一环,通过做口算题,学生可以锻炼自己的计算能力、思维能力和逻辑思维能力。一年级是学生接触数学的起点,口算训练的目的是帮助他们建立起良好的数学思维和习惯。下面是小编整理的小学一年级数学口算题大全及答案,仅供大家参考。
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文章目录
小学一年级数学口算技巧和方法
口算也称心算,它是一种不借助计算工具,主要依靠思维、记忆,直接算出得数的计算方式。新大纲指出:口算既是笔算、估算和简算的基础,也是计算能力的重要组成部分。由此可见,培养学生的计算能力,首先要从口算能力着手。那么怎样培养学生的口算能力呢?我的体会是教师念好“基(抓基本)、教(教方法)、练(常训练)”三字经是至关重要的。
念好“基”字经
“基”是指基本口算。小学数学教学中的口算分为基本口算、一般口算和特殊口算三类。这三类口算以基本口算的内容为主,它是计算的基矗基本口算必须要求熟练,而熟练的程度是指达到“脱口而出”,其它两类口算只要求比较熟练或学会。因此,教学时要注意抓好如下几个方面:
1.直观表象助口算。
从运算形式看,小学低年级的口算是从直观感知过渡到表象的运算。如教学建立9+2的表象:先出示装有9个皮球的盒子,另外再准备2个皮球,让学生想一想,“应该怎样摆才能一眼就看出一共有几个皮球?”很快有学生说:“我从盒子外面的2个皮球中拿1个皮球放进盒子里,盒子里就有10个皮球,外面还有一个,一共11个。”我表扬了这个同学说得好,并说明这种方法叫做“凑十法”,即看到9就想到9和几凑成10。这样,表象建立了,口算的准确性也就有基础了。
2.理清算理助口算。
基本口算的教学,不在于单一的追求口算速度,而在于使学生理清算理,只有弄清了算理,才能有效地掌握口算的基本方法。因此,应重视抓好算理教学,例如教学8+5=13时,要从实际操作入手,让学生理解:8比10少2,求8与5之和,
应把8+5分成2和3 8 + 5
8与2组成10 2 3
10加3得13。 10
并画出口算8+5=13的思维过程图。在学生充分理解了算理的基础上,简缩思维过程,抽象出进位加法的法则:“看大数,分小数,凑成10,再加几。”最后,再引导学生想一想“5+8”怎样算。这样,学生理解了算理,亦就掌握了口算的基本方法。
3.说理训练助口算。
抓好说理训练,能使学生有效地掌握基本口算,培养学生思维的灵活性。例如教学20以内的退位减法,上课一开始先出示“13-8=?”,问学生“13-8等于几呢?”“等于5。”又问:“是怎样想出来的?”“做减法,想加法。”再鼓励学生:“能不能想出另外的口算方法呢?”在学生说出几种口算方法后,归纳出不同的退位减法,并要求学生就不同的方法加强说理训练,以提高口算的速度。
念好“教”字经
“教”就是教给学生口算方法和规律。
当学生都能熟练基本口算之后,就应转入拔高训练,即教给学生口算方法和规律:
(一)用“凑十法”口算。
根据式题的特征,应用定律和性质使运算数据“凑整”:
1.加数“凑整”。
如14+5+6=?启发学生:几个数相加,如果有几个数相加能凑成整十的数,可以调换加数的位置,把几个数相加。
2.运用减法性质“凑整”。
如50-13-7,启发学生说出思考过程,说出几种口算方法并通过比较,让学生总结出:从一个数里连续减去几个数,如果减数的和能凑成整十的数,可以把减数先加后再减。这种口算比较简便。
3.连乘中因数“凑整”。
如25×1 4×4,25与4的积是100,可直接口算出结果是140。
(二)运用“分解法”口算。
就是把题目中的某数“拆开”分别与另一个数运算,如2 5×32,原式变成2 5×4×8=10×8=80。
(三)运用一些速算技巧进行口算。
1.首同尾合10的两个两位数相乘的乘法速算。
即用其中一个十位上的数加1再乘以另一个数的十位数,所得积作两个数相乘积的百位、千位,再用两个数个位上数的积作两个数相乘的积的个位、十位。如:14×16=224(4×6=24作个位、十位、(1+1)×1=2作百位)。
2.头差1尾合10的两个两位数相乘的乘法速算。即用较大的因数的十位数的平方,减去它的个位数的平方。如:48×52=2500-4=2496。
3.采用“基准数”速算。
如623+595+602+600+588可选择600为基数,先把每个数与基准数的差累计起来,再加上基数与项数的积。
4.掌握一些运算规律。
例如,两个分母互质数且分子都为1的分数相减,可以把分母相乘的积作分母,把分母的差作分子;两个分母互质数且分子相同,可以把分母相乘的积作为分母,分母相减的差再乘以分子作分子,等等。
(四)熟记常用数据。
如:1.1~20各自然数的平方数;2.分母是2、4、5、8、10、16、20、25的最简分数的小数值,也就是这些分数与小数的互化;3.圆周率近似值3 14与一位数各自的积。
念好“练”字经
“练”是指口算要经常训练。口算能力的形成,要通过经常性的训练才能实现,且训练要多样化。
1.分散集中结合练。
例如,在“20以内进位加法和退位减法”基本口算训练中,先集中练“进”、“退”位的口算,然后分散练9加几、8加几……;11减几、12减几……,最后集中起来训练,引导学生整理出:“20以内进位加法表”和“20以内退位减法表。”
这样,通过集中———分散———再集中的反复性训练,使学生达到脱口而出的程度。
2.每堂课上安排练。
每节数学课教师视教学内容和学生实际,选择适当的时间,安排3~5分钟的口算练习,这样长期进行,持之以恒,能收到良好的效果。
3.多种形式变换练。
例如:视算训练、听算训练、抢答口算、口算游戏、“对抗赛”、“接力赛”等等。
如何提高学生的口算能力
口算也称心算,它是一种不借助计算工具,主要依据思维、记忆,直接算出得数的计算方式。口算既是笔算、估算和简算的基础,也是计算能力的重要组成部分,它是学习数学的基础。而且口算能力的高低,对学生基本的运算能力有着极其重要的影响;口算能力的训练,有助于培养学生的快速反应能力;由此可见,培养学生的计算能力,首先要从口算能力着手。那么怎样培养学生的口算能力呢?
一、采取灵活多样的训练形式
每天固定课前进行几分钟的口算练习,形式可以多种多样,视算和听算是口算练习中两种基本的形式。视算是通过眼看题目脑算、口说得数;而听算则要求通过耳听、脑记和脑算,方能算出得数,难度较大。在口算中经常调换口算形式,将视算和听算相互结合起来,交替使用,可以提高学生口算的兴趣,使他们的学习心理始终保持着渴求积极状态。每节数学课视教学内容和孩子的实际情况,选择适当的时候,穿插进行趣味性练习,多种形式的口算训练能让全班都积极主动参与,让每个孩子都有练习的机会,既提高孩子对口算的兴趣,也提高了计算的速度,达到了训练的目的。
掌握科学有效的口算方法
科学有效的口算方法,是提高口算能力的重要途径之一,常用的口算方法有以下几种: 1、运用“凑十法”口算
根据式题的特征,应用定律和性质使运算数据“凑整”:加数“凑整”。如14 5 6=?启发学生:几个数相加,如果有几个数相加能凑成整十的数,可以调换加数的位置,把几个数相加。
运用减法性质“凑整”。如50-13-17,启发学生说出思考过程,说出几种口算方法并通过比较,让学生总结出:从一个数里连续减去几个数,如果减数的和能凑成整十的数,可以把减数先加后再减。这种口算比较简便。 连乘中因数“凑整”。如25?4?=?,25与4的积是100,可直接口算出结果是1400。
运用“分解法”口算
“分解法”口算就是把题目中的某数“拆开”分别与另一个数运算,如25?32,原式变成25?(4?8)=100?8=800。
运用一些速算技巧进行口算
首同尾合10的两个两位数相乘的乘法速算。即用其中一个十位上的数加1再乘以另一个数的十位数,所得积作两个数相乘积的百位、千位,再用两个数个位上数的积作两个数相乘的积的个位、十位。如:14?16=224(4?6=24作个位、十位、(1+1)?1=2作百位)。<BR><BR>4.采用“基准数”速算。<BR><BR>如623+595+602+600+588可选择600为基数,先把每个数与基准数的差累计起来,再加上基数与项数的积。<BR><BR>口算训练的方法很多,要结合教学实际和本班学生的年龄特点,选择灵活多样的口算方法,充分发挥学生的主体性,调动积极性,坚持不懈的训练,才能提高学生的口算能力。
坚持培养良好的口算习惯
在口算训练中,要培养学生细心、勤思等良好的个性品质和习惯,从儿童一入学学习始,就应有目的地培养,为后继学习打下良好的思想基础和知识基础。训练口算,应根据儿童的年龄特点,适当进行口算训练。练习内容要灵活多样,并结合各年级的教材内容有机进行,持之以恒,使学生树立认真、严格、刻苦钻研的学习态度和独立思考、克服困难的精神。在长期不懈的努力中,培养学生良好的口算习惯,从而提高孩子的口算能力。
口算心得
口算是笔算、估算和简便运算的基础,是计算能力的重要组成部分。口算在人们日常生活、社会生产、经营交易中有着广泛的应用,它是一个学生必备的基本素养之一。学生口算能力的优劣将直接影响其数学学习成绩的提高。那么,该如何提高学生的口算能力呢?结合本段的学习,我重点在“记”与“巧”两字上下功夫。
一、“记“字上作文章
1、在学习最大公约数时,学生对11、13、17、19的倍数不熟悉,导致约分时公约数找不到,看到此题束手无策。对此我要求学生熟记100以内11、13、17、19的倍数。
2、分数、小数互化,有的数据或算式出现频率很高,如果反复去计算这些相同结果的算式,既费时有费力。为此,我让学生熟记这些常见算式的结果。、、1/8、3/8、5/8、7/8、1/25、等分数、小数互化的结果。
3、为很快计算出正方体的表面积和体积,我要求学生熟记11——20的平方,2-10的立方。学生熟记了这些结果,为口算“快”和“准”提供了有力的证据。
4、在教学圆这一单元时,我要求学生熟记
1∏—10∏,16∏,25∏,36∏,64∏等。学生熟记了这些结果,为口算“快”和“准”提供了有力的证据。
二、“巧”字上花心思
小学生口算能力的培养需要熟练、灵巧,我在口算练习时结合学生的实际和内容的特点,积极调动一切有利因素,提高学生的口算技能。
1、提升书写速度。
有很多学生在计算出结果后,书写一个得数就要用将近一两秒的时间,这样在原来算得就不够快的前提下,更是延误了时间,所以必须提升书写数字的速度,让学生能够在最短的时间内写出最满意的答案。在实施的计算过程中,我发现学生乘法算式计算的比除法计算的快,我想这可能是学生的乘法口诀运用有问题,或可以说是思维的不定向所造成的。为了提升学生的口算速度,应该先让学生把乘法算式练熟,然后在乘法熟练的基础上计算除法。
2、再现竖式法。
我们在笔算时,多数学生都会在练习本上列出竖式,然后计算。那么在口算时,我们可以在头脑中再现竖式,让学生的口算犹如在笔算一样,只不过是在头脑中再现竖式,而不是在练习本上列竖式。
以上便是我想运用一定的口算技巧,来提高学生的口算能力的不成熟的想法,也有待于我在实施的具体过程中不断改进与完善
快速口算技巧
快速口算窍门(科学又实用的速算法)
科学快速口算法
一、两首位相同,两尾数和是10的两位数乘法,(被乘数首位加1),然后两首位相乘得一积,两尾数相乘再得一积,两积连起来就是所求之积。例如:
72 63 84
× 78× 67× 86
5616 4221 7224
注:两位数的平方尾数是5的亦可用此法。如:
25 ×25=625 45 ×45=2025
75 ×75=5625 95 ×95=9025
二、两位数相同,两尾数和不等于10的两位数乘法,首先两尾数相乘得一积,然后两尾数之和与被乘数的首位相乘又得一积,最后两首位相乘(首位数的平方)再得一积,三积连加起来即为所求之积。例如
52 61 73
× 53× 62× 74
2756 3782 5402
注:两位数的平方尾数不是5的亦可用此法。如:
22 66
× 22× 66
484 4356
三、被乘数首尾相同,乘数首尾和是10的两位数乘法:(乘数首位加1)然后两尾数相乘得一积,两首位再相乘又得一积,最后两积相连就是所求之积。如:
22 44 88
× 19× 28× 37
418 1232 3256
四、两首位和是10,两尾数相同的两位数乘法,首先两尾数相乘得一积,两首位相乘之积再加上一个相同的尾数,又得一积,两积连来就是所求之积。如:
26 76 47
× 86× 35× 67
2236 2656 3149
五、两首位相差是1,两尾数和是10的两位数乘法 :
如:38×22=836可分解为(30+8)×(30-8)=30×30-8×8=836
原理:a×a-b×b=(a+b)×(a-b)
又如:46×34=1564 85×75=6375
六、任意两位数乘法:(十字相乘法或对角线相乘法)首先用十字相乘法得和数(被乘数首位与乘数尾数相乘之积加上被乘数尾数与乘数首位数相乘之积)加上两首位数相乘与两尾数相乘之积。如:
43×85=3655
4 × 3
× 8 5
4 4
+ 32 15
36 55
34×65=2210
3 × 4
× 6 5
3 9
+ 18 20
22 10
七、三位数乘法,首位和中间数相同,尾数之和等于10的三位数乘法,首先两尾数相乘得一积,(给被乘数中加1)再两中位相乘又得一积。然后两中位数相加再和被乘数首位相乘得一积,最后两首位相乘得一积,四积连起来就是所求之积。
112×118=13216
112
× 118
13216
八、任意数与11相乘:
任意数与11相乘,在计算的过程中:首尾数字不变然后两相邻数相加,满十向前进一。
如:12468×11=137148
25124×11=276364
九、9、99、999等与任意数相乘:
即首先找出任意数的补数(两个数之和为10,这两个数互为补数),然后将补数连在9、99、999等数末位,最后由所得新数最高位减去补数,就是所求之积。
如:999×999=998001
9999×8997=89961003
小学一年级数学知识点归纳整理
知识点概括总结
1.数一数
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=398&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage1.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A479%2C%22imgOriH%22%3A479%2C%22imgOriW%22%3A398%2C%22t%22%3A%22img%22%2C%22w%22%3A398%7D)
2.比一比
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=247&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage2.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A257%2C%22imgOriH%22%3A257%2C%22imgOriW%22%3A247%2C%22t%22%3A%22img%22%2C%22w%22%3A247%7D)
草莓比香蕉多(1)个。
3.长短
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=280&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage3.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A193%2C%22imgOriH%22%3A193%2C%22imgOriW%22%3A280%2C%22t%22%3A%22img%22%2C%22w%22%3A280%7D)
4.高矮
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=188&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage4.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A171%2C%22imgOriH%22%3A171%2C%22imgOriW%22%3A188%2C%22t%22%3A%22img%22%2C%22w%22%3A188%7D)
戴眼镜穿蓝色上衣的叔叔要比戴眼镜穿黄色上衣的叔叔高。
5.第几
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=532&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage5.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A261%2C%22imgOriH%22%3A261%2C%22imgOriW%22%3A532%2C%22t%22%3A%22img%22%2C%22w%22%3A532%7D)
6.比大小
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=375&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage6.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A278%2C%22imgOriH%22%3A278%2C%22imgOriW%22%3A375%2C%22t%22%3A%22img%22%2C%22w%22%3A375%7D)
7.几和几
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=405&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage7.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A275%2C%22imgOriH%22%3A275%2C%22imgOriW%22%3A405%2C%22t%22%3A%22img%22%2C%22w%22%3A405%7D)
8.加法
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=360&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage8.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A293%2C%22imgOriH%22%3A293%2C%22imgOriW%22%3A360%2C%22t%22%3A%22img%22%2C%22w%22%3A360%7D)
9.减法
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=250&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage9.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A218%2C%22imgOriH%22%3A218%2C%22imgOriW%22%3A250%2C%22t%22%3A%22img%22%2C%22w%22%3A250%7D)
10.认识物体和图形
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=455&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage10.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A208%2C%22imgOriH%22%3A208%2C%22imgOriW%22%3A455%2C%22t%22%3A%22img%22%2C%22w%22%3A455%7D)
11.分类
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=378&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage11.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A225%2C%22imgOriH%22%3A225%2C%22imgOriW%22%3A378%2C%22t%22%3A%22img%22%2C%22w%22%3A378%7D)
12.6的认识和加减法
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=489&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage12.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A175%2C%22imgOriH%22%3A175%2C%22imgOriW%22%3A489%2C%22t%22%3A%22img%22%2C%22w%22%3A489%7D)
13.7的认识和加减法
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=522&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage13.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A283%2C%22imgOriH%22%3A283%2C%22imgOriW%22%3A522%2C%22t%22%3A%22img%22%2C%22w%22%3A522%7D)
14.8和9的认识
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=241&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage14.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A210%2C%22imgOriH%22%3A210%2C%22imgOriW%22%3A241%2C%22t%22%3A%22img%22%2C%22w%22%3A241%7D)
15.7、8、9的比较
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=351&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage15.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A309%2C%22imgOriH%22%3A309%2C%22imgOriW%22%3A351%2C%22t%22%3A%22img%22%2C%22w%22%3A351%7D)
16.9和10的比较
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=470&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage16.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A202%2C%22imgOriH%22%3A202%2C%22imgOriW%22%3A470%2C%22t%22%3A%22img%22%2C%22w%22%3A470%7D)
17.连加
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=370&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage17.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A101%2C%22imgOriH%22%3A101%2C%22imgOriW%22%3A370%2C%22t%22%3A%22img%22%2C%22w%22%3A370%7D)
18.连减
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=366&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage18.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A99%2C%22imgOriH%22%3A99%2C%22imgOriW%22%3A366%2C%22t%22%3A%22img%22%2C%22w%22%3A366%7D)
19.加减混合运算
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=226&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage19.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A128%2C%22imgOriH%22%3A128%2C%22imgOriW%22%3A226%2C%22t%22%3A%22img%22%2C%22w%22%3A226%7D)
20.认识钟表
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=470&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage20.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A387%2C%22imgOriH%22%3A387%2C%22imgOriW%22%3A470%2C%22t%22%3A%22img%22%2C%22w%22%3A470%7D)
一年级下册
知识点概括总结
1.位置:所在或所占的地方,有上下、前后、左右之分。
2.上:位置方位名词,例如:汽车在马路的上面。
3.下:位置方位名词,例如:船在桥的下面。
4.前:位置方位名词。
例如:张三在李四的前排,那么可以说张三在李四的前面。
5.后:位置方位名词。
例如:李四在张三的后排,那么可以说李四在张三的后面。
7.退位减:减法运算中必须向高位借位的减法运算。
8.20以内的退位减法:
20以内的数字之间的退位减法。例如:12-9=3.
9.图形的拼组:
作风车:
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=459&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage21.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A461%2C%22imgOriH%22%3A461%2C%22imgOriW%22%3A459%2C%22t%22%3A%22img%22%2C%22w%22%3A459%7D)
10.数一数
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=290&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage22.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A172%2C%22imgOriH%22%3A172%2C%22imgOriW%22%3A290%2C%22t%22%3A%22img%22%2C%22w%22%3A290%7D)
11.读数
24读作“二十四”;169读作“一百六十九”。
12.比较数的大小
先比较高数位的数学,再按照数位的高低依次比较。
例如:39和145比较大小,39百位数字为0,145百位数字为1,0小于1,所以39小于145.
13.100以内数的认识:100=10个10相加。
14.认识人民币:
贰角
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=129&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage23.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A59%2C%22imgOriH%22%3A59%2C%22imgOriW%22%3A129%2C%22t%22%3A%22img%22%2C%22w%22%3A129%7D)
五角
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=140&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage24.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A66%2C%22imgOriH%22%3A66%2C%22imgOriW%22%3A140%2C%22t%22%3A%22img%22%2C%22w%22%3A140%7D)
一元
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=188&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage25.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A98%2C%22imgOriH%22%3A98%2C%22imgOriW%22%3A188%2C%22t%22%3A%22img%22%2C%22w%22%3A188%7D)
五元
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=190&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage26.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A102%2C%22imgOriH%22%3A102%2C%22imgOriW%22%3A190%2C%22t%22%3A%22img%22%2C%22w%22%3A190%7D)
10元
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=191&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage27.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A97%2C%22imgOriH%22%3A97%2C%22imgOriW%22%3A191%2C%22t%22%3A%22img%22%2C%22w%22%3A191%7D)
20元
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=191&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage28.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A97%2C%22imgOriH%22%3A97%2C%22imgOriW%22%3A191%2C%22t%22%3A%22img%22%2C%22w%22%3A191%7D)
50元
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=194&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage29.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A101%2C%22imgOriH%22%3A101%2C%22imgOriW%22%3A194%2C%22t%22%3A%22img%22%2C%22w%22%3A194%7D)
100元
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=188&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage30.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A98%2C%22imgOriH%22%3A98%2C%22imgOriW%22%3A188%2C%22t%22%3A%22img%22%2C%22w%22%3A188%7D)
15.整十数:个位数正好为0的两位数,例如:10,20,30等。
16.整十数加:整十数之间的加法,例如:10+20=30等
17.整十数减:整十数之间的减法:例如:50-20=30等。
18.两位数加一位数和整十数:
两位数加上一个一位数的加法运算,例如:35+3=38等。
19.两位数减一位数和整十数:
两位数减去一个一位数的减法运算,例如:35-2=33等。
20.认识时间
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=196&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage31.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A198%2C%22imgOriH%22%3A198%2C%22imgOriW%22%3A196%2C%22t%22%3A%22img%22%2C%22w%22%3A196%7D)
长针为时针,短针为分针。上图所示时间为7:00,读作“七点”。
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=124&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage32.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A122%2C%22imgOriH%22%3A122%2C%22imgOriW%22%3A124%2C%22t%22%3A%22img%22%2C%22w%22%3A124%7D)
上图时间为7:30,读“七点三十分”。
21.找规律
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=577&md5sum=ef5eda46ea96aa6f174ad59cccef9419&sign=78cdc57ae8&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=195&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage33.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A269%2C%22imgOriH%22%3A269%2C%22imgOriW%22%3A577%2C%22t%22%3A%22img%22%2C%22w%22%3A577%7D)
一年级必背的数学口诀表
10以内加法口诀表
1+1=2 | ||||||||
1+2=3 | 2+1=3 | |||||||
1+3=4 | 2+2=4 | 3+1=4 | ||||||
1+4=5 | 2+3=5 | 3+2=5 | 4+1=5 | |||||
1+5=6 | 2+4=6 | 3+3=6 | 4+2=6 | 5+1=6 | ||||
1+6=7 | 2+5=7 | 3+4=7 | 4+3=7 | 5+2=7 | 6+1=7 | |||
1+7=8 | 2+6=8 | 3+5=8 | 4+4=8 | 5+3=8 | 6+2=8 | 7+1=8 | ||
1+8=9 | 2+7=9 | 3+6=9 | 4+5=9 | 5+4=9 | 6+3=9 | 7+2=9 | 8+1=9 | |
1+9=10 | 2+8=10 | 3+7=10 | 4+6=10 | 5+5=10 | 6+4=10 | 7+3=10 | 8+2=10 | 9+1=10 |
10以内减法口诀表
10-1=9 | ||||||||
10-2=8 | 9-1=8 | |||||||
10-3=7 | 9-2=7 | 8-1=7 | ||||||
10-4=6 | 9-3=6 | 8-2=6 | 7-1=6 | |||||
10-5=5 | 9-4=5 | 8-3=5 | 7-2=5 | 6-1=5 | ||||
10-6=4 | 9-5=4 | 8-4=4 | 7-3=4 | 6-2=4 | 5-1=4 | |||
10-7=3 | 9-6=3 | 8-5=3 | 7-4=3 | 6-3=3 | 5-2=3 | 4-1=3 | ||
10-8=2 | 9-7=2 | 8-6=2 | 7-5=2 | 6-4=2 | 5-3=2 | 4-2=2 | 3-1=2 | |
10-9=1 | 9-8=1 | 8-7=1 | 7-6=1 | 6-5=1 | 5-4=1 | 4-3=1 | 3-2=1 | 2-1=1 |
20以内加减法口诀表
20以内进位加法口诀表
9+2=11 | |||||||
9+3=12 | 8+3=11 | ||||||
9+4=13 | 8+4=12 | 7+4=11 | |||||
9+5=14 | 8+5=13 | 7+5=12 | 6+5=11 | ||||
9+6=15 | 8+6=14 | 7+6=13 | 6+6=12 | 5+6=11 | |||
9+7=16 | 8+7=15 | 7+7=14 | 6+7=13 | 5+7=12 | 4+7=11 | ||
9+8=17 | 8+8=16 | 7+8=15 | 6+8=14 | 5+8=13 | 4+8=12 | 3+8=11 | |
9+9=18 | 8+9=17 | 7+9=16 | 6+9=15 | 5+9=14 | 4+9=13 | 3+9=12 | 2+9=11 |
20以内退位减法口诀表
11-9=2 | 11-8=3 | 11-7=4 | 11-6=5 | 11-5=6 | 11-4=7 | 11-3=8 | 11-2=9 |
12-9=3 | 12-8=4 | 12-7=5 | 12-6=6 | 12-5=7 | 12-4=8 | 12-3=9 | |
13-9=4 | 13-8=5 | 13-7=6 | 13-6=7 | 13-5=8 | 13-4=9 | ||
14-9=5 | 14-8=6 | 14-7=7 | 14-6=8 | 14-5=9 | |||
15-9=6 | 15-8=7 | 15-7=8 | 15-6=9 | ||||
16-9=7 | 16-8=8 | 16-7=9 | |||||
17-9=8 | 17-8=9 | ||||||
18-9=9 |
九九乘法口诀表
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=677.00&md5sum=4f1ff943366a942a6f2c08929a4d0e29&sign=a865c0ef05&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=1029&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage1.jpeg%22%2C%22dataType%22%3A%22jpeg%22%2C%22h%22%3A%22381.00%22%2C%22imgOriH%22%3A608%2C%22imgOriW%22%3A1080%2C%22r%22%3A%5B%22s_sn_10_rId_any%22%2C%22r_9%22%5D%2C%22t%22%3A%22img%22%2C%22w%22%3A%22677.00%22%7D)
1×1=1
1×2=2 2×2=4
1×3=3 2×3=6 3×3=9
1×4=4 2×4=8 3×4=12 4×4=16
1×5=5 2×5=10 3×5=15 4×5=20 5×5=25
1×6=6 2×6=12 3×6=18 4×6=24 5×6=30 6×6=36
1×7=7 2×7=14 3×7=21 4×7=28 5×7=35 6×7=42 7×7=49
1×8=8 2×8=16 3×8=24 4×8=32 5×8=40 6×8=48 7×8=56 8×8=64
1×9=9 2×9=18 3×9=27 4×9=36 5×9=45 6×9=54 7×9=63 8×9=72 9×9=81
一一得一
一二得二 二二得四
一三得三 二三得六 三三得九
一四得四 二四得八 三四十二 四四十六
一五得五 二五一十 三五十五 四五二十 五五二十五
一六得六 二六十二 三六十八 四六二十四 五六三十 六六三十六
一七得七 二七十四 三七二十一 四七二十八 五七三十五 六七四十二 七七四十九
一八得八 二八十六 三八二十四 四八三十二 五八四十 六八四十八 七八五十六 八八六十四
一九得九 二九十八 三九二十七 四九三十六 五九四十五 六九五十四 七九六十三 八九七十二 九九八十一
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=677.00&md5sum=4f1ff943366a942a6f2c08929a4d0e29&sign=a865c0ef05&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=1029&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage2.jpeg%22%2C%22dataType%22%3A%22jpeg%22%2C%22h%22%3A%22326.00%22%2C%22imgOriH%22%3A520%2C%22imgOriW%22%3A1080%2C%22r%22%3A%5B%22s_sn_10_rId_any%22%2C%22r_2%22%5D%2C%22t%22%3A%22img%22%2C%22w%22%3A%22677.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=578.00&md5sum=4f1ff943366a942a6f2c08929a4d0e29&sign=a865c0ef05&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=1029&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage3.jpeg%22%2C%22dataType%22%3A%22jpeg%22%2C%22h%22%3A%22377.00%22%2C%22imgOriH%22%3A630%2C%22imgOriW%22%3A966%2C%22r%22%3A%5B%22s_sn_10_rId_any%22%2C%22r_4%22%5D%2C%22t%22%3A%22img%22%2C%22w%22%3A%22578.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=558.00&md5sum=4f1ff943366a942a6f2c08929a4d0e29&sign=a865c0ef05&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=1029&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage4.jpeg%22%2C%22dataType%22%3A%22jpeg%22%2C%22h%22%3A%22409.00%22%2C%22imgOriH%22%3A751%2C%22imgOriW%22%3A1024%2C%22r%22%3A%5B%22s_sn_10_rId_any%22%2C%22r_4%22%5D%2C%22t%22%3A%22img%22%2C%22w%22%3A%22558.00%22%7D)
背诵方法
快速背熟乘法口诀方法:
①先了解乘法口诀的意义,发现乘法表的规律,再加以引导.
②背过2个2个的数,5个5个的数,所以可以借助这个铺垫先背2和5的乘法口诀,其余的再采取同样的方法.
③背完后,练习时可以采取横着背、竖着背、拐弯背等多种多样的形式。
④做“对口令”、“找朋友”等的游戏提高兴趣.加强口诀熟练成程度和速度.
理解记忆法
理解性记忆需要有一定的参照物,即自己比较熟悉的口诀,比如:七七四十九,八八六十四,九九八十一等,根据这些可以很轻松的找到推算的办法。
例如:8×9的结果想不出,则可思考“9个9减去一个9”,也就是“81-9=72”,当然得出结论后不能写上72就算了,还应把“8×9”的口诀在心里默念一遍,多经历几次这样的思考后,“八九七十二”这句也将成为铭记于心的口诀了。
对比记忆法
对比即是多对数字进行观察和比较。
故事记忆法
故事对于故事族的精灵来说是喜闻乐见的,有些口诀比较特殊,他们可以利用故事的形式来帮助学记忆.
如:唐僧师徒在取经的过程中历尽了九九八十一难,孙悟空有八九七十二变,而猪八戒只有一半法力,四九三十六变,遇到妖怪,孙悟空不管三七二十一,抡起金箍棒就打。
手指记忆法
“伸出十个手指头,手心朝向自己,从左数,顺序依次为1-10。如果想要知道几个9的乘积,只要弯住第几个手指,看它的左边有几个指头就是几个十,右边有几个指头就是几个一,合起来就是所要求得的积。”
如:二九十八,意义为2个9得18,所以弯曲第二个手指头,弯曲的手指的左边有1个指头,右边有8个指头,合起来就是18 ,即二九十八。
小学一年级数学口算题大全及答案
一、口算题(每天20道口算题,必须认真完成、书写认真):
50+12= 16+30= 32+45= 7+61= 24+60=
72+4= 40+60= 83-20= 46-11= 26-4=
94-74= 63-42= 90-20= 58-8= 68-5=
75-23= 56+23= 32+14= 77-23= 31+17=
33+20= 42+25= 50+11= 30+15= 31+45=
71+4= 40+61= 82-20= 45-11= 25-4=
94-73= 63-52= 90-30= 59-8= 67-5=
75-33= 56+33= 33+14= 76-23= 32+17=
50+13= 17+30= 32+46= 6+61= 25+60=
50+2= 15+30= 33+45= 5+61= 29+60=
72+6= 40+50= 87-20= 36-11= 26-2=
94-24= 63-22= 90-10= 38-8= 28-5=
74-23= 53+23= 42+14= 75-23= 31+14=
38+20= 42+26= 50+18= 30+19= 31+46=
72+4= 40+67= 84-20= 47-11= 28-4=
94-63= 63-22= 90-80= 59-4= 67-3=
75-23= 56+23= 35+14= 76-53= 32+16=
50+12= 14+30= 32+47= 16+61= 27+60=
73+5= 23+30= 50+21= 40+37= 70+11=
75+3= 78-7= 98-6= 92+5= 71+6=
51+12= 16+31= 30+45= 70+61= 24+61=
70+4= 41+60= 83-21= 46-10= 26-14=
94-70= 63-40= 90-21= 58-18= 68-15=
75-20= 56+20= 30+14= 77-20= 31+10=
33+21= 42+20= 51+11= 31+15= 31+40=
71+14= 41+61= 82-21= 45-10= 25-14=
94-70= 63-50= 92-32= 59-30= 67-15=
75-32= 56+32= 33+12= 76-22= 32+13=
51+13= 17+31= 32+45= 6+60= 25+61=
51+2= 15+31= 30+45= 15+61= 28+61=
71+6= 41+50= 84-20= 34-11= 23-2=
95-24= 64-22= 91-10= 39-8= 29-5=
75-23= 54+23= 43+14= 76-23= 32+14=
39+20= 43+26= 51+18= 31+18= 32+46=
73+4= 41+67= 85-20= 48-11= 29-4=
95-63= 64-22= 91-80= 59-5= 68-3=
76-23= 57+23= 36+14= 77-53= 33+16=
51+12= 15+30= 33+47= 17+61= 28+60=
74+5= 24+30= 51+21= 41+37= 71+11=
76+3= 79-7= 99-6= 93+5= 72+6=
61+12= 26+31= 40+45= 80+61= 34+61=
80+4= 51+60= 93-21= 56-10= 36-14=
84-70= 53-40= 80-21= 68-18= 78-15=
95-20= 66+20= 40+14= 87-20= 41+10=
43+21= 52+20= 61+11= 41+15= 51+40=
81+14= 51+61= 92-21= 55-10= 35-14=
84-70= 53-50= 82-32= 69-30= 77-15=
85-32= 46+32= 43+12= 86-22= 42+13=
61+13= 27+31= 42+45= 6+70= 35+61=
61+2= 25+31= 40+45= 25+61= 38+61=
81+6= 51+50= 94-20= 44-11= 33-2=
85-24= 74-22= 81-10= 49-8= 39-5=
85-23= 64+23= 53+14= 86-23= 42+14=
49+20= 53+26= 61+18= 41+18= 42+46=
83+4= 31+67= 95-20= 58-11= 39-4=
85-63= 54-22= 81-80= 69-5= 78-3=
86-23= 67+23= 46+14= 87-53= 43+16=
61+12= 25+30= 43+47= 27+61= 38+60=
84+5= 34+30= 61+21= 51+37= 81+11=
86+3= 69-7= 89-6= 83+5= 82+6=
52+12= 17+31= 32+45= 71+61= 25+61=
79+4= 42+60= 85-21= 47-10= 27-14=
95-70= 67-40= 91-21= 57-18= 69-15=
76-20= 55+20= 31+14= 76-20= 32+10=
34+21= 43+20= 52+11= 32+15= 32+40=
72+14= 42+61= 83-21= 46-10= 26-14=
95-70= 64-50= 94-32= 58-30= 68-15=
76-32= 57+32= 35+12= 77-22= 33+13=
52+13= 18+31= 33+45= 6+67= 26+61=
52+2= 16+31= 34+45= 16+61= 29+61=
78+6= 42+50= 85-20= 37-11= 24-2=
96-24= 65-22= 92-10= 38-8= 28-5=
76-23= 55+23= 44+14= 75-23= 33+14=
38+20= 44+26= 52+18= 32+18= 34+46=
74+4= 42+67= 86-20= 49-11= 28-4=
95-63= 65-22= 92-80= 58-5= 69-3=
77-23= 58+23= 35+14= 78-53= 34+16=
52+12= 16+30= 34+47= 18+61= 29+60=
75+5= 25+30= 52+21= 42+37= 72+11=
77+3= 78-7= 98-6= 94+5= 72+6=
12+6= 29-7= 33+2= 3+40= 15+4=
23+5= 37+1= 29-3= 38-3= 15-4=
18-2= 30+8= 43+1= 86+2= 70+3=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
40+6= 62+7= 89-5= 63+3= 34-2=
50-4= 11+2= 53-3= 60+8= 80-7=
32+4= 26-5= 84+4= 35-10= 71+9=
18-4= 66+10= 83-3= 71+5= 60-5=
36+3= 58+30= 28-7= 87-10= 80-6=
11+9= 80-3= 95-4= 64+3= 98-4=
25+7= 62-2= 83+5= 83+10= 10+8=
56+20= 64+6= 65+3= 15-3= 30-3=
32+6= 29-7= 35+2= 7 3+4= 25+4=
43+5= 87+10= 3 9-3= 48-30= 95-40=
81-2= 60+8= 39+10= 76+10= 70+30=
48-9= 47-8= 52-4= 43-8= 68-9=
40-2= 27-9= 32-4= 41-2= 38-9=
50-8= 63-9= 37-8= 56-20= 88-9=
75-9= 92-3= 42-7= 71-6= 58-10=
47-8= 26-7= 52-3= 69-10= 63-5=
80-2= 36-9= 78-4= 65-8= 99-9=
72-2= 45-9= 86-8= 96-2= 24-9=
40-2= 46-9= 43-4= 18-2= 38-8=
35+5= 85+2= 59-4= 78+10= 82-5=
64+6= 32+7= 49-5= 63+3= 84-2=
60-4= 11+20= 45-3= 30+8= 60-7=
25+4= 36-5= 84+4= 52-3= 71+9=
88-4= 76+0= 93-3= 18+5= 70-5=
56+20= 64+6= 65+3= 15-3= 30-3=
32+6= 29-7= 35+2= 7 3+4= 25+4=
43+5= 87+10= 3 9-3= 48-30= 95-40=
81-2= 60+8= 39+10= 76+10= 70+30=
48-9= 47-8= 52-4= 43-8= 68-9=
40-2= 27-9= 32-4= 41-2= 38-9=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
40+6= 62+7= 89-5= 63+3= 34-2=
50-4= 11+2= 53-3= 60+8= 80-7=
32+4= 26-5= 84+4= 35-10= 71+9=
12+6= 29-7= 33+2= 3+40= 15+4=
23+5= 37+1= 29-3= 38-3= 15-4=
18-2= 30+8= 43+1= 86+2= 70+3=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
12+6= 29-7= 33+2= 3+40= 15+4=
23+5= 37+1= 29-3= 38-3= 15-4=
18-2= 30+8= 43+1= 86+2= 70+3=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
40+6= 62+7= 89-5= 63+3= 34-2=
50-4= 11+2= 53-3= 60+8= 80-7=
32+4= 26-5= 84+4= 35-10= 71+9=
18-4= 66+10= 83-3= 71+5= 60-5=
36+3= 58+30= 28-7= 87-10= 80-6=
11+9= 80-3= 95-4= 64+3= 98-4=
25+7= 62-2= 83+5= 83+10= 10+8=
56+20= 64+6= 65+3= 15-3= 30-3=
32+6= 29-7= 35+2= 7 3+4= 25+4=
43+5= 87+10= 3 9-3= 48-30= 95-40=
81-2= 60+8= 39+10= 76+10= 70+30=
48-9= 47-8= 52-4= 43-8= 68-9=
40-2= 27-9= 32-4= 41-2= 38-9=
50-8= 63-9= 37-8= 56-20= 88-9=
75-9= 92-3= 42-7= 71-6= 58-10=
47-8= 26-7= 52-3= 69-10= 63-5=
80-2= 36-9= 78-4= 65-8= 99-9=
72-2= 45-9= 86-8= 96-2= 24-9=
40-2= 46-9= 43-4= 18-2= 38-8=
35+5= 85+2= 59-4= 78+10= 82-5=
64+6= 32+7= 49-5= 63+3= 84-2=
60-4= 11+20= 45-3= 30+8= 60-7=
25+4= 36-5= 84+4= 52-3= 71+9=
88-4= 76+0= 93-3= 18+5= 70-5=
56+20= 64+6= 65+3= 15-3= 30-3=
32+6= 29-7= 35+2= 7 3+4= 25+4=
43+5= 87+10= 3 9-3= 48-30= 95-40=
81-2= 60+8= 39+10= 76+10= 70+30=
48-9= 47-8= 52-4= 43-8= 68-9=
40-2= 27-9= 32-4= 41-2= 38-9=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
40+6= 62+7= 89-5= 63+3= 34-2=
50-4= 11+2= 53-3= 60+8= 80-7=
32+4= 26-5= 84+4= 35-10= 71+9=
12+6= 29-7= 33+2= 3+40= 15+4=
23+5= 37+1= 29-3= 38-3= 15-4=
18-2= 30+8= 43+1= 86+2= 70+3=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
72-2= 45-9= 86-8= 96-2= 24-9=
40-2= 46-9= 43-4= 18-2= 38-8=
35+5= 85+2= 59-4= 78+10= 82-5=
64+6= 32+7= 49-5= 63+3= 84-2=
60-4= 11+20= 45-3= 30+8= 60-7=
25+4= 36-5= 84+4= 52-3= 71+9=
88-4= 76+0= 93-3= 18+5= 70-5=
56+20= 64+6= 65+3= 15-3= 30-3=
12+6= 29-7= 33+2= 3+40= 15+4=
23+5= 37+1= 29-3= 38-3= 15-4=
18-2= 30+8= 43+1= 86+2= 70+3=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
40+6= 62+7= 89-5= 63+3= 34-2=
50-4= 11+2= 53-3= 60+8= 80-7=
32+4= 26-5= 84+4= 35-10= 71+9=
18-4= 66+10= 83-3= 71+5= 60-5=
6+40= 45-5= 6+56= 30+9= 29+6=
58-50= 37+5= 23-20= 67-60= 40+9=
63-30= 42-2= 4+90= 20+67= 56+10=
23-6= 20+80= 51+8= 37-7= 57+30=
72-60= 68-8= 90-70= 7+50= 20+23=
50+28= 52-50= 18+30= 86-40= 40+47=
58-3= 50+38= 5+43= 68-5= 25+40=
96-90= 48+8= 58-8= 55-3= 52+30=
47-7= 66-20= 70-7= 77-9= 32+3=
90-40= 61+5= 60+30= 55-8= 7+33=
86-20= 86-40= 49+3= 56+3= 22+50=
25+20= 7+42= 17+50= 30+20= 100-30=
6+30= 88-60= 7+40= 94-6= 38+4=
100-70= 34+4= 74-70= 28+6= 7+64=
11+9= 80-3= 95-4= 64+3= 98-4=
25+7= 62-2= 83+5= 83+10= 10+8=
56+20= 64+6= 65+3= 15-3= 30-3=
32+6= 29-7= 35+2= 7 3+4= 25+4=
43+5= 87+10= 3 9-3= 48-30= 95-40=
81-2= 60+8= 39+10= 76+10= 70+30=
48-9= 47-8= 52-4= 43-8= 68-9=
40-2= 27-9= 32-4= 41-2= 38-9=
50-8= 63-9= 37-8= 56-20= 88-9=
75-9= 92-3= 42-7= 71-6= 58-10=
47-8= 26-7= 52-3= 69-10= 63-5=
80-2= 36-9= 78-4= 65-8= 99-9=
72-2= 45-9= 86-8= 96-2= 24-9=
40-2= 46-9= 43-4= 18-2= 38-8=
35+5= 85+2= 59-4= 78+10= 82-5=
64+6= 32+7= 49-5= 63+3= 84-2=
60-4= 11+20= 45-3= 30+8= 60-7=
25+4= 36-5= 84+4= 52-3= 71+9=
88-4= 76+0= 93-3= 18+5= 70-5=
56+20= 64+6= 65+3= 15-3= 30-3=
12+6= 29-7= 33+2= 3+40= 15+4=
23+5= 37+1= 29-3= 38-3= 15-4=
18-2= 30+8= 43+1= 86+2= 70+3=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
40+6= 62+7= 89-5= 63+3= 34-2=
50-4= 11+2= 53-3= 60+8= 80-7=
32+4= 26-5= 84+4= 35-10= 71+9=
18-4= 66+10= 83-3= 71+5= 60-5=
36+3= 58+30= 28-7= 87-10= 80-6=
32+6= 29-7= 35+2= 7 3+4= 25+4=
43+5= 87+10= 3 9-3= 48-30= 95-40=
81-2= 60+8= 39+10= 76+10= 70+30=
48-9= 47-8= 52-4= 43-8= 68-9=
40-2= 27-9= 32-4= 41-2= 38-9=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
40+6= 62+7= 89-5= 63+3= 34-2=
50-4= 11+2= 53-3= 60+8= 80-7=
32+4= 26-5= 84+4= 35-10= 71+9=
12+6= 29-7= 33+2= 3+40= 15+4=
23+5= 37+1= 29-3= 38-3= 15-4=
18-2= 30+8= 43+1= 86+2= 70+3=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
45+30= 45+3= 5+41= 50+41= 6+32=
52+6= 40+47= 62+4= 27+40= 5+23=
71+5= 45+30= 69+1= 6+33= 18+70=
44+3= 5+32= 25+4= 20+35= 4+75=
3+95= 30+65= 53+20= 85+3= 4+52=
30+65= 6+22= 16+3= 40+58= 56-30=
56-3= 89-40= 89-4= 75-30= 56-3=
29-4= 77-7= 29-20= 56-4= 63-50=
38-4= 98-3= 96-30= 39-6= 27-5=
25-4= 78-40= 80-30= 79-60= 67-3=
49-7= 26-3= 59-3= 46+30= 51+7=
99-50= 30-1= 55-2= 93-80= 4+74=
45-20= 76-40= 46-30= 38+40= 2+82=
63-30= 95-5= 86+10= 69+0= 73-40=
95-4= 70+28= 6+98= 19-6= 59-4=
20+80= 65+30= 92-50= 13+5= 36-3=
85-2= 58-30= 58+30= 36-30= 5+34=
65-5-50= 80-20+6= 64+80= 53+70= 12+5+50=
70-30+5= 60+4+20= 75-70+9= 80-20+15= 50+34=
6+32-30= 46-6+60= 78-8+29= 30+50+12= 39-8=
25-20+71= 54+3-5= 46+6+20= 90-50+42= 59-6=
32-2+58= 75-40-3= 22-20+50= 36+20-20= 39-7=
72-2= 45-9= 86-8= 96-2= 24-9=
40-2= 46-9= 43-4= 18-2= 38-8=
35+5= 85+2= 59-4= 78+10= 82-5=
64+6= 32+7= 49-5= 63+3= 84-2=
60-4= 11+20= 45-3= 30+8= 60-7=
25+4= 36-5= 84+4= 52-3= 71+9=
88-4= 76+0= 93-3= 18+5= 70-5=
56+20= 64+6= 65+3= 15-3= 30-3=
12+6= 29-7= 33+2= 3+40= 15+4=
23+5= 37+1= 29-3= 38-3= 15-4=
18-2= 30+8= 43+1= 86+2= 70+3=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
40+6= 62+7= 89-5= 63+3= 34-2=
50-4= 11+2= 53-3= 60+8= 80-7=
32+4= 26-5= 84+4= 35-10= 71+9=
18-4= 66+10= 83-3= 71+5= 60-5=
6+40= 45-5= 6+56= 30+9= 29+6=
58-50= 37+5= 23-20= 67-60= 40+9=
63-30= 42-2= 4+90= 20+67= 56+10=
23-6= 20+80= 51+8= 37-7= 57+30=
72-60= 68-8= 90-70= 7+50= 20+23=
50+28= 52-50= 18+30= 86-40= 40+47=
58-3= 50+38= 5+43= 68-5= 25+40=
96-90= 48+8= 58-8= 55-3= 52+30=
47-7= 66-20= 70-7= 77-9= 32+3=
90-40= 61+5= 60+30= 55-8= 7+33=
86-20= 86-40= 49+3= 56+3= 22+50=
25+20= 7+42= 17+50= 30+20= 100-30=
6+30= 88-60= 7+40= 94-6= 38+4=
100-70= 34+4= 74-70= 28+6= 7+64=
11+9= 80-3= 95-4= 64+3= 98-4=
25+7= 62-2= 83+5= 83+10= 10+8=
56+20= 64+6= 65+3= 15-3= 30-3=
32+6= 29-7= 35+2= 7 3+4= 25+4=
43+5= 87+10= 3 9-3= 48-30= 95-40=
81-2= 60+8= 39+10= 76+10= 70+30=
48-9= 47-8= 52-4= 43-8= 68-9=
40-2= 27-9= 32-4= 41-2= 38-9=
50-8= 63-9= 37-8= 56-20= 88-9=
75-9= 92-3= 42-7= 71-6= 58-10=
47-8= 26-7= 52-3= 69-10= 63-5=
80-2= 36-9= 78-4= 65-8= 99-9=
72-2= 45-9= 86-8= 96-2= 24-9=
40-2= 46-9= 43-4= 18-2= 38-8=
35+5= 85+2= 59-4= 78+10= 82-5=
64+6= 32+7= 49-5= 63+3= 84-2=
60-4= 11+20= 45-3= 30+8= 60-7=
25+4= 36-5= 84+4= 52-3= 71+9=
88-4= 76+0= 93-3= 18+5= 70-5=
56+20= 64+6= 65+3= 15-3= 30-3=
12+6= 29-7= 33+2= 3+40= 15+4=
23+5= 37+1= 29-3= 38-3= 15-4=
18-2= 30+8= 43+1= 86+2= 70+3=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
40+6= 62+7= 89-5= 63+3= 34-2=
50-4= 11+2= 53-3= 60+8= 80-7=
32+4= 26-5= 84+4= 35-10= 71+9=
18-4= 66+10= 83-3= 71+5= 60-5=
36+3= 58+30= 28-7= 87-10= 80-6=
32+6= 29-7= 35+2= 7 3+4= 25+4=
43+5= 87+10= 3 9-3= 48-30= 95-40=
81-2= 60+8= 39+10= 76+10= 70+30=
48-9= 47-8= 52-4= 43-8= 68-9=
40-2= 27-9= 32-4= 41-2= 38-9=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
40+6= 62+7= 89-5= 63+3= 34-2=
50-4= 11+2= 53-3= 60+8= 80-7=
32+4= 26-5= 84+4= 35-10= 71+9=
12+6= 29-7= 33+2= 3+40= 15+4=
23+5= 37+1= 29-3= 38-3= 15-4=
18-2= 30+8= 43+1= 86+2= 70+3=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
16+9= 5+18= 17+3= 36+6= 29+5= 87+9=
48+8= 35+8= 4+19= 7+26= 4+37= 29+4=
19+8= 29+7= 7+38= 9+18= 40+6= 35+30=
62+8= 75+5= 23+7= 26+8= 19+60= 32+8=
16+9= 24+6= 5+37= 44+7= 67+9= 50+8=
61+9= 85+4= 91+8= 82+5= 39+1= 46+7=
23+7= 37+4= 78+3= 27+6= 39+8= 68+5=
9+25= 85+6= 92+4= 86+2= 48+7= 39+9=
2+38= 56+8= 36+5= 35+6= 46+9= 9+25=
23+8= 46+6= 90+9= 84+7= 34+7= 56+3=
12+9= 93+3= 58+3= 75+7= 35+6= 86+8=
39+2= 27+4= 50+5= 34+9= 10+60= 9+50=
10+40= 61+10= 18+5= 74+6= 37+2= 26+5=
23+7= 47+4= 88+3= 47+6= 39+8= 68+5=
26+8= 19+6= 28+5= 53+6= 78+5= 37+9=
23+8= 89+6= 75+5= 86+6= 68+7= 87+9=
26+9= 25+6= 50+37= 49+7= 87+9= 50+8=
61+9= 85+4= 91+8= 82+5= 39+10= 46+7=
73+7= 37+4= 78+3= 27+60= 39+8= 68+5=
9+25= 35+6= 2+40= 86+2= 48+7= 39+10=
16+9= 5+18= 17+3= 36+6= 29+5= 87+9=
48+8= 35+8= 4+19= 7+26= 4+37= 29+4=
39+8= 26+7= 7+38= 6+18= 40+6= 35+30=
32+8= 25+5= 13+7= 86+8= 19+60= 32+8=
16+9= 34+6= 5+37= 14+7= 37+9= 57+8=
39+2= 27+4= 50+5= 54+9= 70+60= 39+50=
10+40= 6+10= 18+50= 74+6= 37+2= 26+50=
23+70= 47+4= 88+3= 47+6= 99+1= 68+5=
26+8= 19+60= 48+50= 23+6= 78+50= 87+9=
83+8= 19+6= 75+5= 36+6= 18+7= 47+9=
83+70= 67+40= 88+3= 47+6= 39+8= 68+5=
36+8= 19+6= 28+50= 53+6= 78+5= 17+9=
45+30= 45+3= 5+41= 50+41= 6+32=
52+6= 40+47= 62+4= 27+40= 5+23=
71+5= 45+30= 69+1= 6+33= 18+70=
44+3= 5+32= 25+4= 20+35= 4+75=
3+95= 30+65= 53+20= 85+3= 4+52=
30+65= 6+22= 16+3= 40+58= 56-30=
56-3= 89-40= 89-4= 75-30= 56-3=
29-4= 77-7= 29-20= 56-4= 63-50=
49-7= 26-3= 59-3= 67-3= 46+30=
99-50= 30-1= 55-2= 27-5= 46-30=
4+74= 51+7= 38+40= 93-80= 76-40=
63-30= 95-5= 86+10= 2+82= 45-20=
69+0= 73-40= 100-30= 59-4= 36-30=
95-4= 70+28= 6+98= 19-6= 5+34=
20+80= 65+30= 92-50= 13+5= 50+34=
85-2= 58-30= 58+30= 36-3= 12+5+50=
65-5-50= 80-20+6= 64+80= 53+70=
70-30+5= 60+4+20= 75-70+9= 80-20+15=
6+32-30= 46-6+60= 78-8+29= 30+50+12=
25-20+71= 54+3-5= 46+6+20= 90-50+42=
32-2+58= 75-40-3= 22-20+50= 36+20-20=
一、在( )里填上合适的数。
20分=( )角 7角=( )分 60角=( )元 1元=( )分 40角=( )元 1元=( )角 5角4分=( ) 分 65角=( )元 ( )角 9角=( )分 3元6角=( )角 23分=( )角( )分 70角=( )元5角=( )分 80分=( )角 6角2分=( )分 200分=( )元 64分=( )角( )分 1元5角=( )角 3角8分=( )分 73分=( )角( )分 1元2角=( )角 1元5角=( )角 2元6角=( )角 2元9角=( )角 3元 = ( )角 1元 =( ) 1角8分=( )分 1角6分=( )分 ( )元( )角=13角 )分
二、在 里填上“>”|“<”或“=”。
50分 5角 4分 4角 1元 9角 3角 31分 7元 7角 6元8角 7元 42分 4元1角 200分 3元
7角 65分 81分 9角1分 5角 30分 40分 4角
三、换人民币。
1、1张1元可以换成( )张1角。2、1张1元可以换成( )张2角。
3、1张1元可以换成( )张5角。4、1张1元可以换成( )张5角、( )张2角和( )张1角。5、1张2元可以换成( )张1元。6、1张5元可以换成( )张1元.7、1张5元可以换成( )张2元和( )张1元。8、1张10元可以换成( )张1元。9、1张10元可以换成( )张2元。10、1张10元可以换成( )5元。11、1张10元可以换成( )张2元和( )张1元。12、1张10元可以换成( )张5元和( )张1元。
13、1张20元可以换成( )张1元。14、1张20元可以换成( )张2元。
15、1张20元可以换成( )张5元。16、1张20元可以换成( )张10元。17、1张50元可以换成( )张5元。18、1张50元可以换成( )张10元。19、1张50元可以换成( )张20元和( )张10元。20、1张100元可以换成( )张10元。
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![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=264.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage10.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22147.00%22%2C%22imgOriH%22%3A188%2C%22imgOriW%22%3A307%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22264.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=252.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage11.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22139.00%22%2C%22imgOriH%22%3A212%2C%22imgOriW%22%3A330%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22252.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=240.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage12.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22138.00%22%2C%22imgOriH%22%3A208%2C%22imgOriW%22%3A287%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22240.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=240.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage13.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22144.00%22%2C%22imgOriH%22%3A201%2C%22imgOriW%22%3A332%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22240.00%22%7D)
二、专求左边的部分数。
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=252.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage14.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22144.00%22%2C%22imgOriH%22%3A174%2C%22imgOriW%22%3A254%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22252.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=288.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage15.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22178.00%22%2C%22imgOriH%22%3A187%2C%22imgOriW%22%3A243%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22288.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=264.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage16.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22178.00%22%2C%22imgOriH%22%3A182%2C%22imgOriW%22%3A270%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22264.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=293.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage17.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22178.00%22%2C%22imgOriH%22%3A170%2C%22imgOriW%22%3A280%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22293.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=288.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage18.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22202.00%22%2C%22imgOriH%22%3A179%2C%22imgOriW%22%3A255%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22288.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=305.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage19.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22217.00%22%2C%22imgOriH%22%3A209%2C%22imgOriW%22%3A293%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22305.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=264.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage20.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22187.00%22%2C%22imgOriH%22%3A190%2C%22imgOriW%22%3A267%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22264.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=267.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage21.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22169.00%22%2C%22imgOriH%22%3A178%2C%22imgOriW%22%3A280%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22267.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=240.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage22.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22189.00%22%2C%22imgOriH%22%3A164%2C%22imgOriW%22%3A272%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22240.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=312.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage23.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22183.00%22%2C%22imgOriH%22%3A171%2C%22imgOriW%22%3A291%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22312.00%22%7D)
三、专求右边的部分数。
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=252.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage24.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22177.00%22%2C%22imgOriH%22%3A189%2C%22imgOriW%22%3A268%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22252.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=228.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage25.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22169.00%22%2C%22imgOriH%22%3A172%2C%22imgOriW%22%3A294%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22228.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=264.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage26.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22153.00%22%2C%22imgOriH%22%3A133%2C%22imgOriW%22%3A270%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22264.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=240.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage27.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22184.00%22%2C%22imgOriH%22%3A162%2C%22imgOriW%22%3A284%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22240.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=252.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage28.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22158.00%22%2C%22imgOriH%22%3A147%2C%22imgOriW%22%3A271%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22252.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=216.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage29.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22178.00%22%2C%22imgOriH%22%3A175%2C%22imgOriW%22%3A283%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22216.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=260.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage30.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22168.00%22%2C%22imgOriH%22%3A168%2C%22imgOriW%22%3A260%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22260.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=276.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage31.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22226.00%22%2C%22imgOriH%22%3A198%2C%22imgOriW%22%3A304%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22276.00%22%7D)
四、一图四式。
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=276.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage32.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22159.00%22%2C%22imgOriH%22%3A205%2C%22imgOriW%22%3A449%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22276.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=264.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage33.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22158.00%22%2C%22imgOriH%22%3A158%2C%22imgOriW%22%3A300%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22264.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=300.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage34.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22166.00%22%2C%22imgOriH%22%3A164%2C%22imgOriW%22%3A332%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22300.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=264.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage35.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22178.00%22%2C%22imgOriH%22%3A180%2C%22imgOriW%22%3A291%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22264.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=293.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage36.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22195.00%22%2C%22imgOriH%22%3A231%2C%22imgOriW%22%3A341%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22293.00%22%7D)
五、情景图。
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=588.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage37.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22199.00%22%2C%22imgOriH%22%3A220%2C%22imgOriW%22%3A651%2C%22r%22%3A%22r_93%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22588.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=252.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage38.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22159.00%22%2C%22imgOriH%22%3A154%2C%22imgOriW%22%3A267%2C%22r%22%3A%22r_93%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22252.00%22%7D)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=252.00&md5sum=8712a72dc748c98a00442a04c7c37b22&sign=daa2842fda&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=127&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage39.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22170.00%22%2C%22imgOriH%22%3A156%2C%22imgOriW%22%3A273%2C%22r%22%3A%22r_93%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22252.00%22%7D)
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小学一年级数学期末考试模拟试卷
满分:100分 卷面(3分)
(68分)
一、填 一 填。(26分)
1.10个十是( )。
2.8个十和4个一组成的数是( ),它比90少( )。
3.一个两位数个位上是9,十位上是5,这个两位数是( ),它比20多( )。
4.与70相邻的两个数是( )和( )。
5. 写作( ),读作( )。
6.把下面各数从小到大排列起来。
46 52 78 27 69
( )<( )<( )<( )<( )
7.64个羽毛球,每10个装一盒,可以装满( )盒。
8. 2元5角=( )角 60角=( )元
37角=( )元( )角 1元2角+8角=( )元
2元=( )角 12元-10角=( )元
9.按规律填数。
(1)1,4,7,10, ,
(2)89,80,71,62, ,
二、选 一 选。(把 正 确 答 案 的 序 号 填 在 括 号 里)(5分)
1.用( )个相同的 可以拼成一个 。
①3 ②4 ③5
2.用一张 可以换( )张 。
①10 ②2 ③20
3.语文书有90页,比《一千零一夜》薄一些,《一千零一夜》大约有( )页。
①23 ②95 ③75
4.从35到44有( )个数。
①12 ②10 ③9
5.朋朋买橡皮花了8角,还剩2元2角,他原来有( )。
①3元 ②10元2角 ③3元2角
三、判 一 判。(对 的 画 “√”,错 的 画 “×”)(5分)
1.四十六写作406。 ( )
2.在一套七巧板里有6个三角形。 ( )
3.58和85两个数中的“5”表示的意义一样。 ( )
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=32.73&md5sum=25228df6293191526914a4c589633ea3&sign=bcf98b964f&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=325&ipr=%7B%22anchor%22%3A%7B%22dis_bottom%22%3A%220.00%22%2C%22dis_left%22%3A%2212.00%22%2C%22dis_right%22%3A%2212.00%22%2C%22dis_top%22%3A%220.00%22%2C%22incell%22%3Atrue%2C%22lock%22%3Afalse%2C%22margin_left%22%3A%2215.27%22%2C%22margin_top%22%3A%2212.20%22%2C%22overlap%22%3Atrue%2C%22pos_h_by%22%3A%22column%22%2C%22pos_v_by%22%3A%22paragraph%22%2C%22z_index%22%3A%22251660288%22%7D%2C%22bdoc%22%3A%220%22%2C%22c%22%3A%22word%2Fmedia%2Fimage5.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%2249.47%22%2C%22imgOriH%22%3A113%2C%22imgOriW%22%3A75%2C%22layouttype%22%3A%22anchor%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%2232.73%22%2C%22xpos%22%3A%2215.27%22%2C%22ypos%22%3A%2212.20%22%2C%22z%22%3A%22251660288%22%7D)
4. 的上、下底面都是圆。 ( )
5.读数和写数都是从个位起。 ( )
四、数 一 数,填 一 填。(8分)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=226.53&md5sum=25228df6293191526914a4c589633ea3&sign=bcf98b964f&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=325&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage6.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%2298.13%22%2C%22imgOriH%22%3A225%2C%22imgOriW%22%3A520%2C%22r%22%3A%22r_2%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22226.53%22%7D)
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五、计算。(共24分)
1.直接写得数。(16分)
13-9= 67+8= 12-4= 63-30=
16-7= 34+30= 57-7= 28-4=
48-5= 67-9= 64-8= 63-20=
38-20= 54-7= 15-8= 78-9=
2.下面的计算结果对吗?对的画“√”,错误的画“×”,并改正。(8分)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=530.27&md5sum=25228df6293191526914a4c589633ea3&sign=bcf98b964f&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=325&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage8_1.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22152.00%22%2C%22imgOriH%22%3A348%2C%22imgOriW%22%3A1215%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22530.27%22%7D)
(32分)
六、解决问题。(共32分)
1.彤彤写了多少个大字?(4分)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=249.60&md5sum=25228df6293191526914a4c589633ea3&sign=bcf98b964f&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=325&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage10_1.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%2275.33%22%2C%22imgOriH%22%3A173%2C%22imgOriW%22%3A572%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22249.60%22%7D)
2.两只小青蛙一共吃了多少只害虫?(4分)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=342.53&md5sum=25228df6293191526914a4c589633ea3&sign=bcf98b964f&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=325&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage11_1.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22108.93%22%2C%22imgOriH%22%3A250%2C%22imgOriW%22%3A785%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22342.53%22%7D)
3.一共要采30个蘑菇,还要采多少个?(5分)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=248.93&md5sum=25228df6293191526914a4c589633ea3&sign=bcf98b964f&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=325&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage12.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%2299.87%22%2C%22imgOriH%22%3A229%2C%22imgOriW%22%3A570%2C%22r%22%3A%22r_2%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22248.93%22%7D)
4.共有32个苹果,每5个放1盘,可以放几盘?还剩几个?(5分)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=142.40&md5sum=25228df6293191526914a4c589633ea3&sign=bcf98b964f&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=325&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage13.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%2281.47%22%2C%22imgOriH%22%3A187%2C%22imgOriW%22%3A326%2C%22r%22%3A%22r_2%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22142.40%22%7D)
5.分一分。(14分)
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=488.20&md5sum=25228df6293191526914a4c589633ea3&sign=bcf98b964f&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=325&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage14_1.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%22130.47%22%2C%22imgOriH%22%3A299%2C%22imgOriW%22%3A1119%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%22488.20%22%7D)
(1)如果把上面的动物分成3组,可以怎样分?把分组结果表示出来。
种类 | |||
只数 |
(2)如果分成两组,还可以怎样分?
种类 | ||
只数 |
![小学一年级数学口算技巧和方法及必背的数学口诀表资料整理](https://wkrtcs.bdimg.com/rtcs/image?w=98.87&md5sum=25228df6293191526914a4c589633ea3&sign=bcf98b964f&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=325&ipr=%7B%22c%22%3A%22word%2Fmedia%2Fimage15_1.png%22%2C%22dataType%22%3A%22png%22%2C%22h%22%3A%2225.27%22%2C%22imgOriH%22%3A58%2C%22imgOriW%22%3A227%2C%22r%22%3A%22r_4%22%2C%22t%22%3A%22img%22%2C%22w%22%3A%2298.87%22%7D)
有一堆苹果,比10个多,比15个少,分给几个小朋友,每人分4个,正好分完。猜一猜,这一堆苹果共有多少个?分给几个小朋友?(10分)
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