Answer the following:

1. 3+ (-5) =

2.-2+7=

3. -10 + (-5) =

4.7+(-2) =

5. 10 - (5) =

6. 20 - (-15) =

7. -15-(15) =

8. 25-(-5) =

9. (5) (-7)=

10. (-4) (-5) =

11. (-10)(2) =

12. -25 + 5 =

13. 10(-2) =

14. -20 ÷ (-5) =

15. 30 ÷ (-15) =​


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