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Addition and subtraction to 20

English 28 Public

Addition and subtraction facts to 20

Study Slideshow

7+7

14

15

20-7

13

15

9+4

13

15

10+7

17

15

20-10

10

15

18-7

11

15

6+9

15

15

20-14

6

20

10+9+1

20

20

15-5+2

12

15

15+6

21

15

3+7+8

18

15

19-14

5

15

10+7+3

20

15

16-8

8

15

8+9

17

15

1
2
›