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mixed addition and subtraction

English 30 Public

basic facts

Study Slideshow

12 - 4

8

15

11 - 8

3

15

14 - 8

6

15

7 + 3

10

15

5 + 9

14

15

5 + 7

12

15

9 - 6

3

15

16 - 9

7

15

7 + 6

13

15

9 + 9

18

15

3 + 9

12

15

13 - 8

5

15

7 + 7

14

15

16 - 8

8

15

5 + 8

13

15

17 - 1

16

15

1
2
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