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First grade addition and subtraction

English 16 Public

math

Study Slideshow

4 + 5

9

15

6 + 7

13

15

9 + 4

13

15

3 + 8

11

15

7 + 8

15

15

2 + 9

11

15

9 + 3

12

15

7 + 4

11

15

8 + 6

14

15

7 - 2

5

15

9 - 4

5

15

8 - 4

4

15

7 - 6

1

15

6 - 3

3

15

5 - 1

4

15

9 - 8

1

15