CPM Homework Help : MC1 Problem 6-74

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6-74.

Simplify each of the following expressions.

$−8 + \left(−8\right) + \left(−8\right) + 24$
Answer (a):
$0$

$−10 − \left(−10\right)$
Hint (b):
Use the diagram below to help you visualize subtracting $−10$ .

$36 + \left(−6\right) · 5$
Answer (c):
$6$

$10\left(2\right) − \left(−2\right)\left(10\right)$
Hint (d):
$20 − \left(−20\right)$

$3 + \left(−2\right)\left(3\right) − 3$
Answer (e):
$−6$

$98 + \left(−2\right)\left(10\right) − 9\left(5\right)$
Hint (f):
Circling terms should be helpful with this one.
$\enclose{circle}[mathcolor="orange"]{\color{black}{98}} + \enclose{circle}[mathcolor="orange"]{\color{black}{-2(10)}}- \enclose{circle}[mathcolor="orange"]{\color{black}{9(5)}}$

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