20以内加减法趣味练习
20以内加减法的技巧
20 以内加减法的技巧一、手指辅助延伸法。
例1:计算6 +8=我至今记得有这样一位小朋友,5 以内的加减法很勉强能通过,10 以内的就得靠他那10个手指头了。
当我们教到20以内的加减法时他就束手无策了,无奈只好脱掉鞋子把自己的10 个脚趾头也搬了上来。
对于这样的学生,我起初真的也束手无策了,这样下去该如何是好,总得想出点办法来。
看着自己的双手我也动了一番脑筋,于是我就把一只手看成是9,大拇指代表5,其他各指都代表1,另外一只手也是如此。
以例1 计算6 +8= 为例,计算像这样20以内的进位加法时,我就告诉他:左手拿出6(大拇指加食指),右手拿出8(大拇指加另3 个手指),然后把两个大拇指合起来就是1(05+5=10),再数数还有几个手指(4 个),那合起来就是十几了(14)。
就这么反复的教了几遍后,这位小朋友就明白了我的意思,以后做20 以内的进位加法速度也快多了,比以往手指、脚趾并用得心应手多了。
计算20 以内的进位加法都可以用这种方法来解决。
低年级学生尤其是一年级学生以具体形象思维为主要形式,对“一只手是5个手指头,两只手合起来是10 个手指头。
”这一概念在幼儿时期就已经形成在小朋友的大脑中了。
我只是让他们把这一概念继续延续下去,两个大拇指一并就是10,然后数数还有几个手指就是十几。
因为我把20 以内的进位加法转化成为10以内的加法和整十数加几的加法了,这对小朋友来说要比进位计算简便的多,所以学生计算速度大大提高了。
后来,我也把这种方法教给了计算速度很一般的小朋友,他们的速度也有了大大提高。
在教学活动中,我们不光要注重交给学生理论知识,面对学困生不要一味地用同一种方法去教学,要尽可能想出一些巧妙既便于记忆的方法来,只要结果相同,教无定法。
二、将错就错倒减法。
例2:计算15 -8=这是20 以内的退位减法,在教学生的过程中,我们老师一般教学程序如下:让学生把被减数15 分成10 和5,然后用10 去减8 还多出2,再与5 相加等于7,所以15-8=7,而且在练习的过程中教师都非常注重过程,还要让学生说说是怎样做的。
20以内加减法练习题
20以内加减法口算练习题(一)姓名:___ 时间:_____ 做对了_____题(共80题)10+8= 10+2= 13+2= 8+2+3= 8+10= 17-7=19-3= 9+1+4= 18-8= 10+8= 3+11= 7+3+5= 18-10=3+10= 16-4= 7+4+6= 10+1= 10+2= 19-4= 7+8+3= 1+10= 10+10= 19-5=6+4+7=11-1= 14-4=15-3= 8+2+5= 11-10= 18-8= 10+4=5+4+6=6+10= 6+10=13-3= 7+2+3= 16-6= 10+9=14-1= 3+4+10=16-10= 8+10=10+2= 11-1-5 = 10+3=13-3=13-3=17-7-3=3+10= 5+10=3+15=19-9+1= 13-3= 16-10=18-8= 15-5-7=13-10= 11-10=5+5= 13-3-4= 10+5= 13-10=4+6= 18-10-4= 5+10= 18-10=20-20=17-10-7=10+8= 10-10= 12+4=14-10+5= 3+10= 10+9= 8-8=16-10+3= 11-1= 10-5=10+0=20-10-7= 20以内加减法练习题(二)姓名:_______ 时间:_____ 做对了_____题(共100题)9+1=8+7=8+4=9+7=9+7=8+2=7+9=8+5=6+6=6+5=8+3=7+5=9+6=4+9=2+8=2+9=8+6=6+8=6+5=7+7=19-9=8+8=7+9=5+8=8+8=9+3=7+4=8+10=5+7=4+8=8+4=8+5=7+4=8+7=8+6=5+9=7+7=5+7=4+8=7+6=8+6= 6+5= 9+2= 8+6= 3+9=4+9=1+9=7+8=7+10= 5+9= 5+9=7+3=9+8= 2+8= 3+8=6+9=6+7=9+2=10-9=6+4=7+9=5+6=8+3=2+10=7+2=8+9= 8-5=6+7= 9+8=6+9=9+0= 10-7= 8+4= 6+3= 6+8=5+8=6+7=1+9=10+4=5+10=8+9=2+9=10-5=6+8= 13-3=9+9=9+4=9+5=9+3=3+8=9+3=5+9= 8+2= 7+4=6+7=3+8= 9+5=9+3= 8+3= 5-4=20以内加减法练习题(三)姓名:______ 时间:__ 做对了_____题(共80题)8+9=9+8=7+6=7+5=6+2+7=10+8= 8+5= 9+6= 6+9=4+5+2=5+5= 9+5= 7+8= 9+5=3+5+7=4+6=5+9=6+7=7+7=4+4+6=9+4= 8+4= 9+7= 9+4= 4+3+2=7+4=6+5=8+6=7+8=4+6+5 =8+4= 6+6=6+8=9+6= 7+2+4=10-2= 7+7=8+5=8+3=2+6+5=2+9=9+7=5+8=7+4=7+1+7=7+5=8+8=8+4= 9+9= 6+3+4=18-2=9+2=4+8=8+4=6+1+5=10+5=5+7= 9-4=7+6=5+2+4=9+6= 9+5=7+6= 9+4=3+5+9=8+4=7+9=6+7= 6+8=6+4+1=9+4=8+10=7+5= 7+9=3+6+5=8+7=6+10=5+7=9+8=7+2+6=9+2=8+6=4+7=9+3= 4+4+9=7+5=19-7=7+4=8+4=9+1+9=7+9=7+3=9+3=8+3=8+2+2=8+5=2+8=6+6=6+6=7+3+1=20以内加减法练习题(四)姓名:________ 时间:_____ 做对了_____题(共80题)8+2+4=8-2+6=3+6+9=4+5+8=7+3+2= 4+4-2=2+6+5=2+3+4=8+2+6= 6+2+7=7+2-5=6+3+8=7+3+4= 6+3+7=9-2+7=3+3+2=9+1+8=5+4+7=8-2+8=2+2+4=8+2+5= 4+5+8=9-4+7=4+8+7=5+4+9= 1+0+7=8-2+7=10+2+7=5+2+2= 9-6-1=9-4+7=12+6-5=3+6+4= 5+4+6=6+2+9=7-7+5=5+2+7= 5+1+7=8-2+3=8+2+7=7-3+6=2+3+9=9-4+6=8-3+7=7-2+7= 7+2+6=4+3+5=5+2+3=4+2-3=9+1+5=6+2-3=6+2+2=6+3+4= 7+3+2=3+9+6=3+3+1=4+2+5= 10+8-4=10-5+4=2+3+5=7+2+7= 7-2+9=3+4+6=3-0+7=8+1+2= 6+2+7=9-6+4=5-5+5=1+8+5= 8+2+7=4+5+8=7-3+4=6+3+9= 6-3+9=7+5-7=6+2-6=10-1+2=5+1+7=10-4-0=8-7+6=认数基本题(一)姓名:_____ 时间:______ 做对了_____题1个十和6个一合起来是()1个十和7个一合起来是()1个十和2个一合起来是( )9个一和1个十合起来是()14里有()个十和()个一()个十和()个一合起来是132个十是()20里面有()个一18里有()个十和()个一1个一和1个十合起来是()6个一和()个十合起来是16()个一和1个十合起来是13比14大,比17小的数有()18接近10还是20?( )个位上是7,十位上是1,这个数是()十位上是2,个位上是0,这个数是()个位上是1,十位上是5,这个数是()一个数比16大,比19小,这个数可能是()按规律填数:0、2、()、()、()、10、()、()、()、()、()19、()、15、()、()、9、()、()、()、()5、10、15、()、()、()、()、()、()、()、()10、20、()、()、()、()、()、()、()、()1、4、7、()、()、()、()20以内的加减法 (一)班级姓名成绩9+2=3+8=11-5=16-8= 12-4=6+5=13-5=3+9= 4+7=9+9= 18-9= 15-4= 17-7=5+7=7+7=11-2= 11-3=15-7= 12-6=4+8= 6+8=14-8=9+6=12+3= 11-4=5+8=2+9=16-8= 15-8=6+10=15-3=6+7=9+8=3+9=15-6=14-9= 8+7=16-7=5+6=19-9=20以内的加减法 (二)班级姓名成绩13-7=14-9=9+5=12-8= 15-7=8+9=15-9=10+6= 7+8=8+3=7+5=17-8= 9+4=13-9=7+6=12-9= 9+6=8+5=16-8= 7+4= 8+6=10+5=9+9=14-7=18-8=14-9=18-9=8+8=3+9=11-7=14-2= 6+7= 11-3=5+6=15-8=6+6= 11-2=16-9=4+8=16-8=20以内的加减法 (三)班级姓名成绩15-7=13-7=12-8= 7+4= 16-7=15-8=13-9= 11-7= 8+5=10+3=9+3= 14-7= 7+8=13-8=9+5=16-9=9+4=5+8=17-8=9+6=8+6=14-8=17-7=12-3=15-8=13-4= 18-4=12+3=16-8=6+6=15-9=7+5=6+5=12-4=6+7= 16-8=15-6=12-6=14-5=18-9=20以内的加减法 (四)班级姓名成绩9+3=12-5=4+9= 6+7=3+8=17-7=12-10=7+6=10+6=16-7=9+6=8+5=8+7=4+13=11-1=13-4=11-2=12-7=17-9=6+6=5+6=9+8=15-9= 7+7=6+8=13+6=8+4=16-2=8+8=7+9=10+2=11-6=6+5=4+7=13-8=11-9=14-6=3+9=12-8=15-7=20以内加减法练习(一)姓名:时间:成绩:18- 5 =17-11 =13+ 6 =17- 5 =16-10 = 5 - 4 =9 - 4 =16- 1 =7 +10 =9 - 0 =18+ 1 = 6 +10 =4 - 0 =18-12 =17-17 =10+ 2 =10-10 =9 - 0 =15- 0 = 4 + 1 =0 +16 = 2 + 2 =13-12 = 4 +12 =13+ 4 = 6 - 5 =15-13 =14+ 1 =3 +12 =0 + 0 =0 +17 =7 - 2 =2 +14 =11-10 =11+ 4 =10+ 4 =14- 3 =11- 1 = 3 - 1 =13- 2 =12- 0 =11+ 0 =13-10 =15+ 4 =3 + 5 =10+ 7 =0 + 1 =19-14 =11+ 1 =17- 1 =16+ 2 =16- 4 =3 + 4 = 1 +14 =14+ 2 = 4 +12 =12+ 5 =14+ 1 =10+ 8 =17-15 =15- 3 =9 - 8 =11+ 5 =16+ 1 =12+ 3 =17-12 = 1 +17 =11+ 5 =2 + 6 =19- 5 =7 - 3 =12+ 4 =10+ 7 = 1 +12 =11+ 1 =17-10 =9 - 9 = 4 +12 =11+ 2 =13+ 2 =16- 1 =19-13 = 4 - 3 = 1 +14 =15- 3 = 6 - 5 =13+ 1 =11+ 1 =19- 1 = 2 + 6 =19-18 = 2 +11 =2 + 6 =18-13 =12+ 7 = 3 + 1 =3 +4 =16-14 =18- 2 =5 + 4 =20以内加减法练习(二)姓名:时间:成绩:2 - 2 =7 -3 = 6 - 0 =7 +11 =13- 3 =8 - 6 =0 +18 =10+ 3 =18-11 =17+ 0 = 2 - 2 = 1 + 7 =6 - 3 =13+ 1 = 5 +14 =11+ 0 =7 - 1 =0 +10 = 6 - 1 = 2 + 6 =11-10 =11+ 3 = 5 +10 =12-10 =0 +11 = 5 +10 = 5 - 5 =19-11 =17-13 = 2 + 2 = 3 +11 =10+ 3 =17- 3 = 1 - 0 =9 - 5 =19- 8 =8 + 0 =17- 1 =13-10 =17+ 0 =5 - 3 =9 - 8 =7 - 3 = 2 - 2 =14- 2 = 5 - 3 =0 + 4 =9 - 8 =17-14 =16-14 = 3 +12 = 3 - 0 =19-15 =18- 2 =11+ 2 =14-12 =1 + 3 = 5 +11 =10+ 5 =11- 1 =5 - 2 =7 -6 =12+ 6 =10+ 9 =14+ 5 = 1 + 3 = 2 +10 =8 +10 =10+ 8 = 2 - 1 =9 - 1 =9 - 5 =1 + 8 =12+ 6 =9 - 3 =8 -2 =17-11 =11-10 =7 - 6 =19- 3 =15-11 =7 - 4 =16-14 = 5 - 2 =8 - 6 =15- 2 =16-13 = 3 +11 =8 - 7 = 2 +17 = 5 +14 =14+ 4 =11+ 3 = 5 +12 =16-12 =7 + 2 =17- 4 =7 +11 =18- 7 = 4 + 5 =20以内加减法练习(三)姓名:时间:成绩:19- 5 =10+ 1 = 2 +15 =19- 5 =12-11 = 3 + 3 =18- 4 =19-10 =16-16 = 1 + 8 = 1 +13 =14- 4 =18-11 =18- 7 =0 +19 =12+ 1 =15-11 =12+ 3 =18-13 = 6 - 0 =1 + 7 =18-16 =18- 6 =9 - 1 =6 - 3 =13- 1 =19-15 =8 - 0 =6 - 6 =0 +19 =9 - 2 = 3 - 3 =12+ 3 = 2 +11 =7 - 3 =13- 2 =8 - 0 = 1 + 5 =15+ 3 =18-15 =2 + 4 =19-17 = 3 + 6 = 2 - 1 =17-10 = 1 +15 =7 - 6 = 3 + 6 =2 +14 = 5 +13 =15+ 1 =19- 7 =17- 2 = 2 + 3 =14+ 0 =13+ 0 =0 + 1 =18-12 =18- 8 =0 + 1 =12-11 = 4 +11 =12+ 7 = 3 +13 =14+ 5 =19- 1 =14+ 1 = 3 +12 =12+ 4 =17-11 = 5 + 3 =17-11 =6 +10 =17-16 =18- 1 = 2 + 3 =6 +12 =12-10 = 5 +10 = 3 + 6 =17-14 =11+ 1 =19-17 = 4 + 5 =5 - 3 =19-19 = 4 + 3 =7 + 1 =4 - 3 = 3 + 1 = 4 - 2 = 1 + 7 =13- 1 =15- 3 =7 - 1 =12+ 2 =1 +10 =7 +10 =15-10 =18- 6 =20以内加减法练习(四)姓名:时间:成绩:1 + 7 = 3 -2 =18-3 =16-14 =1 +18 =13- 0 =15- 0 =19-19 =17+ 0 =16- 4 = 2 - 2 =12-12 =19- 4 =11+ 2 = 3 +15 = 3 - 0 =0 + 9 = 4 +10 =0 +11 = 4 - 0 =4 - 3 =0 + 5 =9 - 0 =19-18 =17+ 2 =16+ 1 =12-10 =9 - 1 =1 + 7 =10+ 8 = 5 + 2 =17-6 =18- 8 = 3 - 0 =0 - 0 =19- 1 =11-10 =12-10 =7 - 3 =12-11 =15-12 =15-11 = 6 +10 = 1 +13 =4 + 3 = 3 +14 = 2 +13 =18- 2 =8 - 4 = 6 - 2 =9 - 1 = 2 +14 =10+ 2 =7 - 4 =15-11 =8 +10 =13- 3 = 1 +12 = 4 +15 = 2 + 4 =15- 1 =16- 2 =10+ 3 = 1 +14 =16+ 2 =10+ 7 = 2 + 5 = 2 + 6 =1 + 2 =14+ 3 =11+ 8 = 1 + 1 =17-16 = 1 + 2 = 5 +14 =12+ 4 =18-17 =12+ 3 =17-15 = 6 - 1 =6 - 5 = 6 + 2 =16+ 3 = 1 +14 =16+ 1 = 4 +15 = 2 + 3 =18-13 =7 - 1 =15- 1 =17- 6 = 3 +15 =1 + 2 =12+ 3 =16- 1 = 5 +12 =15-11 =19-18 =11+ 6 =11+ 2 =20以内加减法练习(五)姓名:时间:成绩:19+ 0 = 1 +18 =7 - 1 = 1 +16 =4 + 2 =16-15 = 1 - 1 =17-16 =7 + 1 = 5 - 2 = 2 + 4 =19-17 =10+10 = 6 - 1 = 1 + 0 = 1 +11 =2 +10 =0 + 4 =18-15 =12- 1 =15-13 = 5 +14 = 3 + 0 = 1 +15 =6 - 0 =8 - 0 =12+ 7 =15-11 =13+ 4 =0 + 0 =19- 8 =13+ 5 =18- 6 =18- 4 = 1 +16 = 1 +13 =9 - 0 =8 - 0 =9 - 2 = 2 +10 =14- 2 =18- 6 =19-14 =12- 2 =0 +17 =10+ 6 = 5 + 4 =18- 6 =19-19 = 1 +14 = 3 +13 =17- 5 =12+ 5 =10+ 3 = 5 - 1 = 5 + 1 =6 + 1 =9 - 5 = 4 + 1 =9 - 9 =14-10 =16- 6 =13-10 = 3 +14 =6 - 1 =15- 5 = 5 + 3 =15+ 4 =18- 2 =19-13 =11+ 5 = 5 + 3 =19- 1 =16-14 =15- 4 =19- 8 =16-14 = 2 +12 =11+ 3 =19- 5 =17-14 =17+ 2 = 4 +14 =13- 3 =1 +14 =16-11 =12-10 =19- 8 =2 + 6 =7 + 2 =14-10 =9 - 6 =19- 5 = 6 - 5 =15- 5 = 4 +12 =20以内加减法练习(六)姓名:时间:成绩:10+ 6 =0 +16 =16- 2 =19- 1 =2 +15 = 2 +12 =16- 2 =18-16 =2 +17 =10-10 =19- 7 =14-13 =15-15 =12- 1 =0 +11 =7 +11 =14-12 =15- 2 =11+ 0 = 1 + 2 =1 +15 =0 +11 =0 + 9 =17-10 =3 + 2 = 6 - 1 = 5 + 0 =16- 1 =13-12 = 1 + 3 =9 + 0 =8 - 7 =18-4 =13-11 =9 - 7 =18- 4 =2 +5 =10+ 5 = 3 +11 =15-14 =17-12 =12-12 =6 +10 =17-17 =4 - 1 = 5 - 2 = 2 + 5 =10+8 =15- 3 = 1 +14 = 6 +12 = 2 - 1 =18- 6 = 1 +10 =15- 5 =9 - 2 =6 +13 = 1 +14 =8 + 1 =14+ 5 =18- 1 = 3 +10 =14+ 4 =8 - 7 =12-11 =17-16 =10+ 9 = 3 + 4 =1 +13 =12+ 2 =10+ 3 =12+ 4 =3 +12 =16+ 2 =7 - 4 =19-10 =14-10 =11+ 6 =19-16 = 2 +12 =7 +11 =10+ 6 = 2 + 4 =16+ 3 =3 +12 =17- 5 =19- 3 =11+ 8 =1 + 4 =18- 3 = 1 + 7 =19- 4 =14+ 3 = 3 +16 =15-12 = 4 - 3 =20以内加减法练习(七)姓名:时间:成绩:4 + 4 =18- 1 =8 - 8 =15+ 2 =14+ 3 =5 + 3 =10+ 7 =17- 3 =12+ 7 =10+ 3 =16- 0 = 3 +16 =15-14 =14- 2 =9 +10 =15-12 =5 - 3 = 2 +13 =18+ 0 =18- 3 =8 + 0 = 1 - 0 =19-19 = 6 - 1 =6 - 3 =11- 1 =13-11 = 1 + 4 =16- 2 =14-10 =14-13 =11+ 2 =11- 0 =13-10 =14- 2 =16+ 2 =10+ 6 =14- 3 = 4 + 3 =18-17 =15-12 =19-18 =19-18 = 6 +12 =10+ 2 =17- 3 =7 - 3 = 2 +11 =11+ 1 =13-10 = 2 +10 =0 + 5 =6 + 2 =12- 2 =17- 6 = 1 + 2 =2 +13 =13+ 4 = 5 + 2 =19- 5 =1 +12 =9 - 1 = 2 + 1 =11+ 4 =18+ 1 =12-12 =15- 2 =7 +12 =1 +14 =19-10 =19-12 = 4 - 1 =17-15 = 2 + 3 =16-16 = 1 - 0 =7 - 1 =19- 1 = 1 + 4 = 2 + 2 =1 +15 =19-18 =19-18 =17- 1 =3 - 0 =7 - 0 =7 - 1 =12-11 =3 +13 =0 +10 =11+ 0 =8 - 6 =5 +12 =19-18 =15-10 =17- 1 =1 +13 =11+ 8 =12+ 3 =16- 1 =20以内加减法练习(八)姓名:时间:成绩:17- 5 =0 +18 =18-14 =17- 6 =8 - 7 =13+ 0 = 2 + 2 = 5 + 2 =8 + 0 = 3 + 6 = 4 +12 =9 - 5 =6 - 1 = 2 + 3 =17+ 2 = 3 +13 =5 - 0 = 3 - 0 =11+ 5 =0 + 4 =9 +10 =14-11 =8 + 0 = 3 +10 =11+ 7 =16- 0 = 5 + 3 =0 +11 =1 + 8 =12- 2 =15- 1 = 6 - 5 =19- 4 =19-15 =9 - 8 = 3 + 6 =18- 5 =8 +11 = 5 + 3 =17+ 1 =14+ 2 = 3 + 4 =14-12 =18- 7 =4 +13 = 2 + 7 =15- 1 =18-18 =16- 6 = 6 +10 =17+ 2 =8 + 1 =8 - 6 = 4 + 2 =9 - 4 =10+ 3 =1 +15 = 6 - 5 = 1 +12 =13-11 =17-15 =14+ 1 =17-16 =16- 5 =18-10 =15-10 = 1 +18 = 2 - 1 =10+ 5 =8 - 8 = 5 + 3 = 1 +17 =16-15 =16+ 2 = 2 - 1 =10+ 3 =3 +11 =11-10 = 1 + 7 = 6 + 3 =2 +12 =11-10 = 1 +12 =7 +10 =12+ 2 =16-11 =7 - 7 = 5 +12 =2 +16 =7 - 3 =14- 1 =11+ 2 =5 - 3 =16- 3 =12+ 1 =9 - 5 =20以内加减法练习(九)姓名:时间:成绩:18-11 =10+ 7 =15-12 = 1 +16 =1 +16 = 5 - 5 = 3 + 3 =10+ 6 =18-12 =7 - 7 = 4 - 1 =12- 1 =0 + 1 =7 - 0 = 1 +10 =15- 5 =2 + 3 =19- 9 =17- 4 =11+ 2 =16+ 3 = 5 - 5 =18+ 0 =7 +11 =5 +12 =13- 2 = 2 + 6 =8 - 4 =16+ 3 = 1 +13 = 4 - 0 =7 - 2 =18-10 =17- 5 =8 - 3 =0 +11 =9 + 0 =16- 6 =16- 0 = 2 + 4 =13+ 3 = 4 - 0 = 3 + 2 =16-12 =17- 4 =0 +16 =0 + 6 =19+ 0 =10+ 4 =8 - 2 = 3 +11 = 2 + 6 =11+ 3 =19- 5 = 2 +11 =11+ 3 =10+10 =16-14 =9 - 4 = 4 + 3 =5 - 4 =7 - 5 = 5 + 4 = 5 - 3 =17- 3 =17- 4 =14- 2 = 2 + 1 =15+ 3 = 1 + 4 =19-17 =7 + 2 =17-16 =15- 4 =15-12 =14-12 =3 + 3 = 5 + 1 =19- 5 =18-16 =2 + 6 =18- 8 = 2 +16 =8 - 5 =15+ 1 =7 - 3 = 5 - 2 =16-13 =14+ 3 =14+ 1 =13- 2 = 3 +14 =12+ 3 =10+ 6 = 3 +15 =13- 2 =20以内加减法练习(十)姓名:时间:成绩:1 +16 =14+2 = 1 +14 =3 +14 =7 -5 =7 - 1 =10- 0 =15+ 1 =5 +10 = 2 + 5 =11+6 =8 - 8 =11+7 =9 - 6 =10+ 6 = 1 + 0 =7 - 1 =17+ 0 =19- 2 =15-10 =8 - 2 =11+ 0 = 5 + 2 = 4 +10 =2 + 4 = 2 + 3 =12+ 3 =15-14 =1 +16 =16- 3 =18-10 =17- 4 =15- 4 =15+ 2 =16-14 =8 +10 =15-10 =15- 2 = 3 - 3 =0 +19 =15- 2 = 2 +10 = 5 +14 =8 - 4 =15- 4 =7 - 3 = 2 +10 =7 +11 =11-10 =14+ 2 =12+ 0 = 4 + 3 =19-19 = 4 +15 =13- 0 =12-12 =5 +10 = 1 + 1 =19- 3 =15- 2 =9 - 2 =17- 3 =8 - 6 =10+ 1 =18- 5 = 1 +10 =19-18 =8 - 2 =2 + 2 =8 - 7 =11+ 1 =16+ 3 =4 +10 =19- 9 = 3 + 0 =19-5 =12- 1 =17- 3 = 3 + 1 =17-12 =17-16 =12-11 = 3 +10 = 5 - 1 =9 - 3 =10+ 9 =19- 6 = 2 +10 =17- 2 = 4 +15 = 3 + 2 = 1 + 1 =17-14 =7 - 6 =16- 5 = 3 +10 =13+ 6 = 1 + 2 = 6 - 2 =18- 1 =20以内加减法练习(十一)姓名:时间:成绩:0 +11 = 5 +14 =0 + 7 =0 + 6 =19-16 =0 + 0 =18-13 =18- 1 =0 +11 = 1 +17 =0 + 2 =13-10 =0 + 3 = 1 +15 =9 - 9 =10-10 =3 +12 =16- 0 =0 + 0 =17- 3 =19- 6 = 2 +13 = 1 +10 = 2 +13 =5 +12 =12+ 7 =8 - 7 =7 - 4 =9 + 0 = 3 +12 =0 +11 = 5 + 1 =12+ 0 =18-11 = 1 + 4 =19- 5 =1 +15 = 2 + 4 =16+ 1 = 6 +11 =18- 7 =19-11 =10+ 9 = 6 - 5 =5 - 1 =10+ 4 =11+ 3 =17-15 =15- 3 =15- 4 =17- 1 = 3 + 5 =18- 8 =6 - 4 =14-10 = 3 + 1 =9 - 1 =19-10 = 2 + 2 =7 + 1 =19- 6 =8 - 4 = 2 +11 =17- 2 =12+ 1 =17-14 =18- 6 = 4 + 3 =3 +10 =14-12 =12- 1 = 2 +16 =14+ 1 =16-11 =13-11 = 2 +14 =5 +10 =15+ 2 = 1 +18 =17-10 =12+ 1 =19- 2 =7 - 6 = 1 + 7 =6 - 1 =17+ 2 =7 - 1 =7 + 1 =19-14 =9 - 2 =19-18 =7 - 6 =1 +11 = 2 +10 =18- 3 =10+ 9 =20以内加减法练习(十二)姓名:时间:成绩:14+ 4 =0 + 3 =17-11 =18-12 =18- 5 =14+ 4 =0 +12 = 3 +11 =7 +10 =7 + 0 = 2 + 6 = 5 +12 =5 +12 =18- 3 =19- 3 =7 - 4 =9- 8 =10+ 1 =7 - 5 =7 +11 =12+ 3 = 1 +14 =17-14 = 1 +15 =1 + 1 =9 - 5 = 6 + 1 =0 +17 =6 +11 =0 +17 = 6 - 1 =16- 5 =13- 2 = 6 +12 =15-14 =7 + 0 =12+ 7 = 2 +10 = 5 +11 = 6 + 0 =13-10 =16-13 = 5 + 2 =16-14 =5 +13 = 2 +10 =12+ 3 = 3 + 1 =19- 1 = 4 - 4 =0 +18 =12+ 5 =2 +13 = 2 +15 =19-13 =18+ 0 =4 +13 =9 - 0 = 6 - 5 =15- 4 =10+ 2 = 6 +13 = 3 + 6 =12+ 1 =1 +18 =18-11 = 1 + 8 = 4 + 4 =12+ 4 =0 +16 =8 - 2 = 3 +10 =2 + 1 = 6 - 6 = 3 +13 = 6 - 3 =4 +13 = 5 + 1 =7 - 5 =19-19 =13+ 2 =16-14 =16+ 3 =13-13 =6 - 2 = 4 +12 =10+ 0 = 6 - 2 =4 - 1 =16-14 = 6 +12 =15+ 3 =10以内加减法口算练习题集合(一年级)一年级10以内加减法口算练习题(一)姓名时间做对2+6=9-7=3+2=3+4=5+4=3+5=7+1=9-3=8-3=5-4= 8-2=0+8=3+1=6+1=7+3=10-2=7-2=6-4=9-2=10-9=5+5=5+2=9-4=8+1=2-1=4+6=2+7=9-5=3+3=4-2=10-4=1+2=5-3=0+8=10-7=2+4=6-5=4+4=5-1=1+9=8-4=6+0=3-3=1+5=10-5=1+1=8+1=4-1=9-3=3+6=一年级10以内加减法口算练习题(二)姓名时间做对0+6=10-7=3+3=3+5=5+3=4+5=7+3=9-2=8-6=8-4=9-2=0+5=3+0=6+2=7+0=10-3=9-2=6-6=9-0=10-5=5+2=5+3=9-1=8+2=5-1=4+5=2+6=9-0=3+4=4-0=10-5=2+2=5-4=0+9=10-8=3+4=9-5=4+3=7-1=0+9=8-5=6+3=6-3=2+5=10-4=1+3=8+2=4-2=10-3=3+5=一年级10以内加减法口算练习题(三)姓名时间做对10-3=9-2=6-6=9-0=10-5=8-5=2+2=5-4=0+9=10-8= 3+4=9-5=4+3=7-1=0+9=9-2=0+5=3+0=6+2=7+0=5+2=5+3=9-1=8+2=5-1=4+5=2+6=9-0=3+4=4-0=9-5=6+3=6-3=2+5=10-4=0+3=8+2=4-2=10-3=3+5=6+4=2+5=3+6=0+7=1+8=4+4=7+3=9-2=8-6=8-4=一年级10以内加减法口算练习题(四)姓名时间做对9-6=0+6=3+0=6+2=7+0=10-0=9-2=8-6=9-1=10-4=5+5=5+1=9-3=7+2=5-4=2+5=2+6=9-9=3+6=4-4=10-5=2+8=8-4=1+9=10-3=3+4=9-9=4+6=7-3=0+8=8-5=2+3=6-2=2+8=10-7=1+3=7+2=7-2=10-4=5+5=2+4=6-5=4+4=5-3=1+9=8-4=6+0=3-3=1+5=10-5=一年级10以内加减法口算练习题(五)姓名时间做对9-2=6-6=9-0=10-5=8+2=10-3=8-5=2+2=5-4=9-5=3+4=9-5=4+3=7-1=6+3=9-2=0+5=0+9=10-8=6-3=3+0=6+2=7+0=5+2=6+4=5+3=9-1=8+2=5-1=10-4=4+5=2+6=9-0=3+4=4-0=3+0=2+5=9-6=5+5=6+2=0+3=8+2=4-2=10-3=3+5=3+6=0+7=1+8=0+6=7+0=一年级10以内加减法口算练习题(六)姓名时间做对4+4=7+3=9-2=8-6=8-4=10-0=9-2=8-6=5+1=10-4=9-1=9-3=7+2=5-4=9-1=8-5=2+2=5-4=0+9=10-8= 0+5=3+0=9-2=6+2=7+0=8+2=0+3=4-2=10-3=3+5=5+1=9-3=5+5=7+2=5-4=7+3=9-2=4+5=8-6=8-4=2+6=9-0=4+4=3+4=4-0=9-2=6-6=2+2=9-0=10-5=。
一年级20以内加减法题库
一年级20以内加减法题库一、20以内加法题目(10题)1. 3 + 5 =.- 解析:可以用数手指的方法,先伸出3个手指,再伸出5个手指,然后数一数一共伸出了几个手指,得出结果为8。
2. 2+9 =.- 解析:把2分成1和1,先算9 + 1 = 10,再算10+1 = 11。
这种方法叫凑十法,方便计算。
3. 4+7 =.- 解析:把4分成3和1,7和3凑成10,10+1 = 11。
4. 1+12 =.- 解析:12是1个十和2个一,1加上2个一就是13。
5. 5+8 =.- 解析:把5分成3和2,8和2凑成10,10 + 3=13。
6. 6+9 =.- 解析:把6分成5和1,9和1凑成10,10+5 = 15。
7. 3+11 =.- 解析:11是1个十和1个一,3加上1个一就是14,再加上1个十就是14。
8. 7+8 =.- 解析:把7分成5和2,8和2凑成10,10+5 = 15。
9. 2+13 =.- 解析:13是1个十和3个一,2加上3个一就是15,再加上1个十就是15。
10. 4+12 =.- 解析:12是1个十和2个一,4加上2个一就是6,再加上1个十就是16。
二、20以内减法题目(10题)1. 9 - 3 =.- 解析:可以用数手指的方法,伸出9个手指,然后弯下3个手指,数一数剩下几个手指,结果是6。
2. 11 - 2 =.- 解析:11是1个十和1个一,先从1个一里减去2个一不够减,就从1个十里拿出1个十变成10个一,10个一加上1个一就是11个一,11个一减去2个一就是9个一,也就是9。
3. 13 - 4 =.- 解析:13是1个十和3个一,把13分成10和3,先算10 - 4 = 6,再算6+3 = 9。
4. 15 - 7 =.- 解析:把15分成10和5,先算10 - 7 = 3,再算3+5 = 8。
5. 12 - 3 =.- 解析:12是1个十和2个一,把12分成10和2,先算10 - 3 = 7,再算7+2 = 9。
20以内加减法练习题100题及参考答案(完整版)
20以内加减法练习题100题一.计算题(共100题, 共1124分)1.我会算。
9+8= 17-4= 3+9= 18-6=10-8= 0+9= 9+9= 8+5=3+7= 19-6= 17-2= 5+10=16-4= 14+3= 8+7= 4+8=7+9-3= 8+7-10= 9-2+6=9+8-6= 3+5+4= 14-4+3=2.看图列式计算:/□○□=□()3.算得又对又快。
5+6=_____ 12-8=_____ 8+3=_____ 15-8=_____ 2+9=_____ 12-6=_____ 8+5=_____ 15-9=_____ 9+9=_____ 11-8=_____4.口算下面各题。
6+5=________ 12-4=________ 16-7=________7+6=________ 13-8=________ 4+9=________5+8=________ 18-9=________ 14-6=________15-6=________ 14-5=________ 9+2=________5.看图列式。
____ ____ ____ = ____6.口算。
12-5=_____ 19-9=_____ 6+14=_____ 16-7=_____ 8+3=_____ 15-8=_____ 2+9=_____ 12-9=_____ 7+5=_____ 14-6=_____ 16-9=_____ 17-9=_____ 7.看图列式计算。
8.把两个数的差, 填入箭头指的方格里。
_______, _______, _______, _______, _______, _______, _______9.算一算。
11-6=________ 17-9=________ 13-7=________10-7=________ 12-8=________ 15-9=________10.口算下面各题8+4= 13-10= 8+11= 17-6= 10-8-2=12-3= 17-7= 12-4= 5+13= 14+2+3=9+0= 9+4= 11+6= 11-7= 8-0+10=18-9= 8+7= 13-2= 9+9= 16-4+4= 11.计算题。
20以内加减法趣味题
20以内加减法趣味题题目1:小明有5个苹果,小红给了他3个,请问小明现在有多少个苹果?题目2:小猫有4条腿,它又找到了2条,现在它一共有几条腿?题目3:有7个小朋友站成一排,走了2个,还剩下几个小朋友?题目4:有5个鸡蛋,拿走了2个,还剩下几个鸡蛋?题目5:有8个小朋友,老师给他们分发了2个糖果,每个小朋友能分到几个糖果?题目6:小兔子有3个萝卜,又找到了2个,现在它一共有几个萝卜?题目7:有6个小朋友,走了2个,还剩下几个小朋友?题目8:有5个苹果,吃掉了2个,还剩下几个苹果?题目9:有7个小朋友,每人分到2个糖果,一共需要分几个糖果?题目10:小猴子有4个香蕉,又找到了3个,现在它一共有几个香蕉?题目11:有6个小朋友,每人分到2个糖果,还剩几个糖果?题目12:有5个苹果,每人分到2个,还剩下几个苹果?题目13:小狗有3条腿,又找到了2条,现在它一共有几条腿?题目14:有7个小朋友,每人分到2个糖果,一共需要分几个糖果?题目15:小鸟有2个蛋,又找到了3个,现在它一共有几个蛋?题目16:有6个小朋友,走了2个,还剩下几个小朋友?题目17:有5个苹果,每人分到2个,还剩下几个苹果?题目18:小猫有4条腿,又找到了3条,现在它一共有几条腿?题目19:有7个小朋友,每人分到2个糖果,还剩几个糖果?题目20:有5个苹果,拿走了2个,还剩下几个苹果?题目21:小兔子有3个萝卜,又找到了2个,现在它一共有几个萝卜?题目22:有6个小朋友,每人分到2个糖果,还剩几个糖果?题目23:有5个苹果,每人分到2个,还剩下几个苹果?题目24:小狗有3条腿,又找到了2条,现在它一共有几条腿?题目25:有7个小朋友,每人分到2个糖果,一共需要分几个糖果?题目26:小鸟有2个蛋,又找到了3个,现在它一共有几个蛋?题目27:有6个小朋友,走了2个,还剩下几个小朋友?题目28:有5个苹果,拿走了2个,还剩下几个苹果?题目29:小兔子有3个萝卜,又找到了2个,现在它一共有几个萝卜?题目30:有6个小朋友,每人分到2个糖果,还剩几个糖果?。
20以内加减法趣味题试卷
20以内加减法趣味题试卷一、单选题(每题3分,共60分)1. 3 + 5 =()A. 6B. 7C. 8D. 9.解析:3和5合起来就是8,所以3 + 5 = 8,答案选C。
2. 12 - 4 =()A. 8B. 9C. 10D. 11.解析:12可以分成4和8,所以12 - 4 = 8,答案选A。
3. 9 +()= 15.A. 4B. 5C. 6D. 7.解析:因为15 - 9 = 6,所以9 + 6 = 15,答案选C。
4. 18 - 9 =()A. 7B. 8C. 9D. 10.解析:18可以分成9和9,所以18 - 9 = 9,答案选C。
5. 7 + 8 =()A. 13B. 14C. 15D. 16.解析:把7分成5和2,2 + 8 = 10,10+5 = 15,所以7 + 8 = 15,答案选C。
6. 11 - 3 =()A. 7B. 8C. 9D. 10.解析:11可以分成3和8,所以11 - 3 = 8,答案选B。
7. 5 +()= 12.A. 6B. 7C. 8D. 9.解析:12 - 5 = 7,所以5 + 7 = 12,答案选B。
8. 16 - 7 =()A. 8B. 9C. 10D. 11.解析:16可以分成7和9,所以16 - 7 = 9,答案选B。
9. 4 + 9 =()A. 12B. 13C. 14D. 15.解析:把4分成3和1,1+9 = 10,10 + 3 = 13,所以4 + 9 = 13,答案选B。
10. 13 - 5 =()A. 7B. 8C. 9D. 10.解析:13可以分成5和8,所以13 - 5 = 8,答案选B。
11. 6 +()= 14.A. 7B. 8C. 9D. 10.解析:14 - 6 = 8,所以6 + 8 = 14,答案选B。
12. 17 - 8 =()A. 8B. 9C. 10D. 11.解析:17可以分成8和9,所以17 - 8 = 9,答案选B。
小学一年级数学20以内加减法趣味题
小学一年级数学20以内加减法趣味题
小学一年级数学20以内加减法趣味题
1、小明有7个苹果,他又买了3个,现在他有多少个苹果?
答案:小明有10个苹果。
2、小红有8个橘子,她又吃了2个,现在她有多少个橘子?
答案:小红有6个橘子。
3、小刚有9个香蕉,他又买了4个,现在他有多少个香蕉?
答案:小刚有13个香蕉。
4、小芳有5个苹果,她又吃了3个,现在她有多少个苹果?
答案:小芳有2个苹果。
5、小强有6个橘子,他又买了2个,现在他有多少个橘子?
答案:小强有8个橘子。
6、小美有7个香蕉,她又吃了3个,现在她有多少个香蕉?
答案:小美有4个香蕉。
7、小李有9个苹果,他又买了4个,现在他有多少个苹果?
答案:小李有13个苹果。
8、小华有5个橘子,她又吃了2个,现在她有多少个橘子?
答案:小华有3个橘子。
9、小静有6个香蕉,他又买了3个,现在他有多少个香蕉?
答案:小静有9个香蕉。
10、小丽有7个苹果,她又吃了4个,现在她有多少个苹果?
答案:小丽有3个苹果。
以上就是小学一年级数学20以内加减法趣味题,通过这些趣味题,孩子们可以更好地理解加减法的概念,掌握20以内的加减法计算,培养孩子的数学思维能力,提高孩子的数学成绩。
在学习数学的过程中,孩子们可以通过趣味题来提高学习数学的兴趣,增强学习数学的信心,更好地掌握数学知识。