Question

7. Simplify.
i 6+-10
iii. -312 +39 + 192
ii. 137 + (-354)
iv. (-50) + (-200) + 300
8. Evaluate the following.
i. 16+ (-7) +4 + (-9)
ii. (-65) + (-8) + (37) + (-2)
iii. [75 +(-60)] + [(-25) + (-11)]
iv. [1136 + (-1272)] - [(-1250)+1138]
9. Verify a - (-5) = a + b for the following values of a and b.
i. a=2, b= -6
ii. a=-3, b=-8
10. Verify (a + b) + c = a + (b + c) for the following values of a and b.
i. a=42, b= -37, c= -81
ii. a=32, b=0, c=44
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Answer 1

Answer:

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