CPM Homework Help : AC Problem 1-49

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Home > AC > Chapter 1 > Lesson 1.2.1 > Problem 1-49

1-49.

Try these problems without a calculator first. Then use a calculator to check your answer.

Hint:

Remember: When you subtract a negative, it changes to adding a positive. When you multiply two negatives, they become positive.

$-16+7$
Answer (a):
$−9$

$10-(-24)$
Answer (b):
$34$

$(3)(-9)$

$-9+(-11)$
Answer (d):
$−20$

$-49-36$
Answer (e):
$−85$

$-56\div(-7)$

$15\div(-3)$

$-7\div7$

$(-6)·9$
Answer (i):
$−54$

$(-5)(-5)$
Answer (j):
$25$

$(-6)\cdot(43)$

$27-(-3)-4$
Answer (l):
$26$

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