1) 8+ 20 = 2) (-15) + (-3) = 3) 17 + (-19) = (-6) + 20 = 5) (-11)+4= 6) 18+ (-17) = 7) (-7)+(-10) = 8) 10+ 2 = 9) 4+(-16) = 10) (-1) +(-14) = 11) 15+ 9 = 12) (-8) + 16 = 13) (-12) + 14 = 14) 13+(-9) = 15) (-18)+(-5) =
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Answer:
1. 28
2. -18
3. -2
4. 14
5. -7
6. 1
7. -17
8. 12
9. -12
10. -15
11. 24
12. 8
13. 2
14. 4
15. -23