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Addition and Subtraction 1-20

English 15 Public

How quickly can you solve the problems?

Study Slideshow

7+3

10

5

9+7

16

5

20-3

17

15

12-4

8

5

3+10

13

5

16-4

12

5

8-3

5

5

2+7

9

5

8+7

15

5

20-9

11

5

17+3

20

5

13-10

3

5

4+2

6

5

11+8

19

5

12-8

4

5