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Solve the math problem.

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9

- 7













8 - 2 =

12 - 3 =













8 - 8 =













19













-  2

7 - 5 =













13 - 7 =













9

- 9













6 - 6 =













20

- 2













19

- 6













15













-  5

16













-  5

18













-  1

15













-  1

8

- 7













18 - 9 =













17 - 6 =













17 - 4 =













12 - 5 =

14













-  0

4 - 2 =













17 - 2 =













11













-  6

19

-  0

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