小学数学基础20内加减法心算练习.docx

1、小学数学基础20内加减法心算练习15 - 4 = 18 - 11 = 2 + 10=7 + 1=5 + 4=12 - 10 = 14 - 10 = 13 - 10 = 14 - 1 = 9 + 7=16 - 7 = 11 + 5=2 + 2=18 - 7 = 6 + 1=3 + 2=13 - 3 = 8 + 6=8 + 5=10 + 7=8 + 10=12 - 8 = 6 + 2=6 + 11=19 - 10 = 6 + 1=4 + 4=15 - 10 = 3 + 9=10 + 6=17 - 3 = 8 + 3=10 + 7=19 - 6 = 20 - 8 = 17 - 8 = 18 - 3

2、= 11 + 10=16 - 9 = 18 - 3 = 15 - 9 = 19 - 2 = 20 - 6 = 13 - 1 = 5 + 10=3 + 3=7 + 5=11 + 8=5 + 7=3 + 11=8 + 3=5 + 5=7 + 6=16 - 9 = 13 - 8 = 15 - 11 = 12 - 5 = 13 - 4 = 15 - 9 = 2 + 6=13 - 5 = 10 + 3=5 + 8=20 - 11 = 15 - 9 = 10 + 3=15 - 2 = 8 + 11=20 - 8 = 2 + 10=4 + 6=13 - 1 = 1 + 1=4 + 4=1 + 3=14 -

3、7 = 2 + 2=20 - 8 = 18 - 8 = 11 + 7=3 + 3=18 - 5 = 7 + 2=14 - 3 = 3 + 1=4 + 10=17 - 3 = 16 - 3 = 18 - 2 = 16 - 7 = 14 - 7 = 15 - 4 = 7 + 11=15 - 7 = 12 - 2 = 8 + 1=7 + 6=16 - 4 = 10 + 3=12 - 2 = 1 + 5=3 + 9=3 + 6=11 + 5=11 + 10=2 + 4=5 + 2=5 + 9=20 - 12 = 8 + 8=18 - 7 = 4 + 7=10 + 11=3 + 2=19 - 8 = 1

4、3 - 12 = 15 - 2 = 6 + 4=5 + 1=4 + 6=5 + 6=17 - 8 = 13 - 9 = 7 + 6=4 + 8=4 + 7=19 - 12 = 20 - 6 = 13 - 2 = 13 - 6 = 19 - 1 = 5 + 4=7 + 9=15 - 3 = 12 - 12 = 1 + 9=14 - 8 = 19 - 8 = 6 + 2=1 + 8=9 + 11=20 - 12 = 8 + 2=18 - 6 = 19 - 4 = 1 + 11=12 - 6 = 13 - 3 = 13 - 12 = 8 + 8=11 + 2=18 - 1 = 3 + 2=12 -

5、2 = 8 + 11=18 - 8 = 4 + 9=13 - 6 = 6 + 8=10 + 3=20 - 9 = 13 - 12 = 3 + 10=15 - 12 = 18 - 1 = 20 - 1 = 1 + 3=20 - 8 = 12 - 7 = 2 + 11=20 - 4 = 14 - 3 = 20 - 11 = 18 - 5 = 9 + 2=8 + 1=2 + 7=3 + 5=11 + 1=13 - 9 = 18 - 9 = 3 + 9=12 - 9 = 19 - 2 = 20 - 6 = 17 - 1 = 15 - 11 = 8 + 6=1 + 4=14 - 12 = 15 - 2

6、= 5 + 9=13 - 12 = 4 + 9=14 - 8 = 2 + 8=7 + 8=17 - 10 = 14 - 10 = 6 + 8=7 + 2=4 + 8=17 - 8 = 14 - 5 = 4 + 7=17 - 6 = 9 + 8=13 - 12 = 10 + 8=1 + 1=13 - 2 = 13 - 2 = 19 - 8 = 3 + 10=20 - 1 = 2 + 10=7 + 3=11 + 11=6 + 6=13 - 4 = 7 + 4=16 - 4 = 11 + 11=13 - 2 = 8 + 6=20 - 10 = 10 + 9=5 + 5=16 - 9 = 11 + 3

7、=17 - 11 = 16 - 6 = 17 - 8 = 10 + 10=2 + 1=10 + 5=8 + 6=1 + 6=12 - 3 = 7 + 7=14 - 7 = 5 + 5=12 - 2 = 3 + 5=14 - 2 = 20 - 12 = 5 + 5=9 + 7=10 + 6=1 + 5=20 - 2 = 15 - 9 = 12 - 2 = 6 + 9=17 - 12 = 15 - 9 = 19 - 11 = 16 - 11 = 16 - 7 = 17 - 8 = 9 + 4=4 + 1=1 + 11=12 - 2 = 18 - 10 = 20 - 11 = 6 + 9=7 + 9

8、=15 - 2 = 2 + 7=15 - 7 = 7 + 4=7 + 7=17 - 2 = 17 - 6 = 10 + 3=13 - 10 = 8 + 11=6 + 8=9 + 5=3 + 9=10 + 7=9 + 8=20 - 1 = 15 - 2 = 1 + 10=2 + 7=6 + 9=11 + 7=20 - 9 = 1 + 10=15 - 8 = 10 + 10=4 + 7=6 + 1=18 - 10 = 11 + 7=19 - 2 = 13 - 7 = 9 + 9=20 - 11 = 8 + 5=12 - 8 = 13 - 12 = 5 + 2=16 - 9 = 18 - 6 = 1

9、6 - 6 = 3 + 7=14 - 7 = 19 - 12 = 6 + 6=3 + 8=3 + 5=20 - 10 = 19 - 1 = 2 + 4=2 + 3=12 - 7 = 6 + 3=4 + 1=4 + 10=11 + 4=15 - 1 = 14 - 1 = 2 + 2=5 + 10=15 - 3 = 18 - 3 = 3 + 2=7 + 9=14 - 11 = 16 - 4 = 17 - 7 = 10 + 4=20 - 5 = 5 + 1=16 - 11 = 9 + 3=20 - 12 = 1 + 10=19 - 9 = 10 + 2=10 + 3=18 - 6 = 4 + 7=8

10、 + 7=12 - 8 = 7 + 11=16 - 2 = 20 - 9 = 11 + 2=16 - 3 = 8 + 5=4 + 9=13 - 2 = 1 + 8=5 + 4=5 + 11=1 + 10=13 - 9 = 19 - 4 = 19 - 4 = 17 - 12 = 9 + 6=11 + 9=10 + 9=16 - 3 = 1 + 4=20 - 2 = 3 + 8=3 + 7=15 - 10 = 7 + 9=8 + 5=15 - 12 = 12 - 4 = 2 + 3=11 + 6=1 + 3=14 - 6 = 12 - 2 = 18 - 4 = 15 - 2 = 13 - 5 =

11、20 - 10 = 7 + 1=20 - 5 = 12 - 9 = 20 - 11 = 18 - 10 = 3 + 5=15 - 7 = 20 - 1 = 19 - 8 = 12 - 7 = 18 - 6 = 19 - 7 = 15 - 10 = 3 + 1=11 + 8=13 - 6 = 9 + 10=19 - 11 = 4 + 4=11 + 9=17 - 6 = 13 - 2 = 14 - 5 = 10 + 1=7 + 4=14 - 8 = 2 + 2=12 - 4 = 10 + 10=13 - 1 = 18 - 9 = 1 + 5=12 - 10 = 20 - 11 = 6 + 9=4

12、+ 7=3 + 4=15 - 7 = 13 - 3 = 4 + 2=13 - 8 = 12 - 7 = 14 - 7 = 12 - 5 = 20 - 4 = 2 + 4=9 + 7=17 - 1 = 20 - 6 = 13 - 7 = 12 - 5 = 1 + 4=3 + 5=7 + 7=9 + 5=4 + 9=2 + 7=7 + 7=19 - 5 = 12 - 4 = 19 - 6 = 15 - 7 = 11 + 4=1 + 9=5 + 3=19 - 10 = 17 - 11 = 20 - 7 = 10 + 8=1 + 1=8 + 9=3 + 1=2 + 1=9 + 8=6 + 11=6 +

13、 3=8 + 7=9 + 3=16 - 6 = 14 - 10 = 20 - 1 = 7 + 1=14 - 5 = 5 + 7=18 - 1 = 14 - 4 = 5 + 6=11 + 10=14 - 1 = 14 - 4 = 16 - 12 = 6 + 7=12 - 9 = 9 + 5=2 + 6=19 - 5 = 1 + 5=12 - 12 = 13 - 9 = 4 + 7=19 - 3 = 5 + 10=18 - 10 = 12 - 7 = 4 + 4=20 - 5 = 18 - 2 = 12 - 5 = 15 - 6 = 7 + 3=11 + 6=13 - 5 = 9 + 6=19 -

14、 8 = 4 + 5=18 - 1 = 4 + 2=20 - 8 = 2 + 1=11 + 4=2 + 10=20 - 11 = 20 - 11 = 1 + 2=20 - 12 = 16 - 11 = 6 + 4=11 + 1=8 + 6=3 + 5=6 + 1=19 - 9 = 9 + 7=3 + 8=13 - 5 = 8 + 9=7 + 1=20 - 10 = 16 - 2 = 1 + 9=5 + 3=7 + 9=8 + 6=9 + 4=8 + 5=1 + 4=18 - 10 = 11 + 1=9 + 4=20 - 8 = 10 + 11=6 + 2=3 + 7=14 - 6 = 15 -

15、 2 = 11 + 6=17 - 6 = 12 - 6 = 20 - 5 = 3 + 11=8 + 4=4 + 1=6 + 1=1 + 10=17 - 4 = 4 + 4=3 + 4=15 - 1 = 20 - 3 = 20 - 12 = 1 + 10=12 - 1 = 20 - 8 = 15 - 2 = 1 + 11=16 - 10 = 20 - 4 = 19 - 5 = 13 - 6 = 15 - 11 = 3 + 4=18 - 1 = 8 + 7=12 - 12 = 6 + 10=9 + 10=18 - 7 = 2 + 3=8 + 3=3 + 7=7 + 6=13 - 10 = 19 -

16、 8 = 2 + 9=14 - 8 = 6 + 2=14 - 4 = 9 + 4=19 - 8 = 8 + 2=18 - 11 = 17 - 11 = 2 + 7=10 + 3=4 + 10=15 - 3 = 7 + 5=15 - 7 = 18 - 8 = 17 - 5 = 2 + 11=6 + 10=16 - 6 = 9 + 11=9 + 4=12 - 9 = 3 + 7=18 - 8 = 11 + 5=16 - 8 = 13 - 7 = 11 + 2=13 - 8 = 19 - 1 = 14 - 11 = 15 - 9 = 16 - 1 = 17 - 7 = 11 + 3=3 + 5=14

17、 - 6 = 7 + 4=17 - 5 = 13 - 4 = 8 + 11=2 + 6=11 + 1=4 + 4=6 + 5=12 - 7 = 16 - 1 = 14 - 2 = 4 + 9=11 + 11=14 - 11 = 13 - 3 = 14 - 6 = 17 - 5 = 1 + 5=5 + 6=17 - 5 = 2 + 9=3 + 11=2 + 2=11 + 3=2 + 11=14 - 5 = 5 + 1=19 - 12 = 19 - 8 = 14 - 5 = 2 + 4=14 - 1 = 13 - 6 = 4 + 7=17 - 9 = 9 + 11=2 + 9=10 + 4=17

18、- 11 = 11 + 5=12 - 5 = 18 - 2 = 2 + 9=8 + 8=20 - 3 = 13 - 7 = 15 - 6 = 6 + 6=16 - 6 = 19 - 1 = 13 - 1 = 13 - 8 = 12 - 3 = 7 + 8=13 - 1 = 17 - 6 = 2 + 1=6 + 3=9 + 6=18 - 2 = 8 + 9=8 + 8=15 - 1 = 7 + 4=20 - 11 = 14 - 5 = 4 + 2=10 + 4=17 - 12 = 15 - 1 = 12 - 5 = 15 - 11 = 17 - 8 = 4 + 10=11 + 1=16 - 12

19、 = 15 - 1 = 17 - 7 = 20 - 4 = 1 + 3=15 - 3 = 18 - 1 = 5 + 1=3 + 2=12 - 6 = 19 - 3 = 4 + 7=20 - 6 = 2 + 7=19 - 12 = 17 - 4 = 4 + 6=16 - 8 = 11 + 10=20 - 5 = 19 - 12 = 1 + 10=16 - 1 = 2 + 7=1 + 9=15 - 2 = 9 + 7=14 - 5 = 15 - 5 = 7 + 8=3 + 1=18 - 11 = 12 - 1 = 20 - 3 = 13 - 4 = 14 - 3 = 19 - 9 = 12 - 4

20、 = 5 + 7=14 - 12 = 15 - 12 = 15 - 8 = 16 - 1 = 18 - 12 = 18 - 12 = 5 + 6=12 - 5 = 10 + 9=12 - 6 = 2 + 11=5 + 4=8 + 1=20 - 5 = 2 + 5=19 - 3 = 15 - 9 = 13 - 8 = 19 - 8 = 8 + 3=13 - 10 = 8 + 10=1 + 10=19 - 8 = 16 - 2 = 19 - 1 = 11 + 4=4 + 11=3 + 2=3 + 9=13 - 10 = 8 + 7=14 - 10 = 15 - 10 = 8 + 6=15 - 1

21、= 1 + 8=12 - 5 = 16 - 4 = 12 - 4 = 11 + 1=17 - 4 = 7 + 2=19 - 3 = 12 - 9 = 2 + 5=16 - 12 = 4 + 5=12 - 6 = 12 - 2 = 3 + 11=6 + 6=14 - 10 = 6 + 6=12 - 2 = 5 + 5=5 + 11=19 - 3 = 14 - 7 = 19 - 7 = 10 + 8=20 - 6 = 10 + 1=2 + 4=19 - 12 = 10 + 6=2 + 5=12 - 9 = 14 - 12 = 14 - 6 = 13 - 12 = 8 + 9=17 - 3 = 15

22、 - 5 = 12 - 11 = 17 - 3 = 17 - 5 = 19 - 7 = 10 + 10=6 + 4=1 + 1=18 - 6 = 18 - 8 = 11 + 4=14 - 8 = 19 - 12 = 17 - 10 = 14 - 1 = 2 + 9=3 + 11=5 + 6=17 - 11 = 14 - 6 = 17 - 2 = 3 + 11=19 - 2 = 16 - 7 = 7 + 8=13 - 2 = 18 - 7 = 4 + 3=4 + 4=7 + 11=17 - 7 = 18 - 12 = 20 - 1 = 2 + 6=20 - 8 = 15 - 8 = 16 - 1

23、1 = 9 + 5=6 + 10=13 - 5 = 15 - 3 = 17 - 8 = 10 + 1=19 - 5 = 19 - 4 = 20 - 7 = 19 - 11 = 9 + 3=16 - 2 = 14 - 12 = 20 - 11 = 10 + 3=2 + 6=8 + 4=6 + 11=15 - 4 = 15 - 3 = 6 + 11=9 + 6=2 + 2=9 + 1=8 + 7=7 + 6=15 - 9 = 7 + 1=2 + 2=20 - 10 = 18 - 11 = 9 + 2=13 - 1 = 4 + 8=15 - 9 = 16 - 3 = 3 + 9=4 + 6=17 -

24、 7 = 17 - 12 = 2 + 7=3 + 6=13 - 3 = 14 - 11 = 14 - 7 = 18 - 9 = 17 - 2 = 19 - 9 = 11 + 9=9 + 7=2 + 10=11 + 4=6 + 1=10 + 3=4 + 2=19 - 4 = 8 + 6=20 - 4 = 17 - 7 = 5 + 2=16 - 9 = 19 - 8 = 17 - 6 = 14 - 3 = 20 - 2 = 7 + 9=10 + 3=14 - 3 = 11 + 5=3 + 11=2 + 2=9 + 4=12 - 10 = 18 - 12 = 13 - 4 = 16 - 7 = 14

25、 - 12 = 14 - 2 = 8 + 11=20 - 4 = 9 + 2=2 + 4=6 + 2=19 - 1 = 15 - 7 = 15 - 11 = 19 - 7 = 9 + 10=9 + 8=12 - 4 = 10 + 9=13 - 9 = 11 + 1=14 - 4 = 11 + 9=18 - 4 = 6 + 10=13 - 6 = 20 - 7 = 4 + 4=20 - 7 = 12 - 4 = 7 + 11=6 + 11=12 - 4 = 10 + 5=7 + 6=5 + 6=1 + 1=3 + 3=18 - 4 = 3 + 6=11 + 4=19 - 6 = 2 + 2=19

26、 - 1 = 6 + 9=16 - 12 = 9 + 9=5 + 6=14 - 4 = 20 - 7 = 18 - 5 = 12 - 4 = 6 + 6=3 + 2=4 + 7=10 + 9=7 + 9=9 + 9=12 - 11 = 19 - 7 = 19 - 10 = 5 + 8=9 + 11=17 - 11 = 16 - 8 = 14 - 7 = 20 - 10 = 14 - 4 = 8 + 2=5 + 6=4 + 6=17 - 10 = 14 - 4 = 2 + 11=10 + 4=20 - 1 = 15 - 1 = 9 + 6=4 + 11=8 + 5=11 + 10=11 + 2=19 - 8 = 7 + 3=16 - 2 = 6 + 3=