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Addition and subtraction with negatives

Stuck? Read the notes

	Answers
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Without using a calculator, find the value of:

1. (-8) + 12
2. (-3) + 5
3. (-8) + 5
4. (-8) - 3
5. (-5) - 6
6. 7 - 11

Find, without a calculator:

7. (-12) + (-6)
8. 5 + (-3)
9. 4 + (-12)
10. (-6) + 9
11. (-8) + (-4)
12. (-3) + 10

Find, without a calculator:

13. 7 - (-10)
14. 9 - (-5)
15. 5 - (-11)
16. (-11) - (-8)
17. (-3) - (-3)
18. (-2) - (-4)

Quick mix. Find, without a calculator:

19. (-8) + 18
20. (-6) - 11
21. (-7) + (-16)
22. (-5) - (-8)