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Add and subtract within 20

English 25 Public

adding and subtracting

Study Slideshow

2 + 7 =

9

15

5 + 5 =

10

15

6 + 8 =

14

15

9 + 4 =

13

15

12 + 6 =

18

15

13 + 4 =

17

15

8 + 7 =

15

15

11 + 7 =

18

15

8 + 8 =

16

15

7 + 7 =

14

15

9 + 9 =

18

15

6 + 6 =

12

15

10 - 6 =

4

15

9 - 4 =

5

15

8 - 5 =

3

15

12 - 7 =

5

15

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