CPM Homework Help : AC Problem 1-22

CPM Homework Banner

Home > AC > Chapter 1 > Lesson 1.1.3 > Problem 1-22

1-22.

Compute Without a calculator.

$−15+7$
Hint (a):
One strategy is to draw a diagram and eliminate zeros.
Answer (a):
$-15+7=-8$

$8−(−21)$
Hint (b):
$8-(-21)=8+21$

$−12−(−4)$

$−9+(−13)$

$−50−30$
Hint (e-h):
Use the strategies shown in problems (a) and (b) to help you solve.

$3−(−9)$

$−75−(−75)$

$(−3)+6$

$9+(−14)$

$28−(−2)$

$−3+(−2)+5$
Hint (k) - (l):
Separate the problem into two parts. Solve the first part and then attempt the remaining part of the problem.

$3+2+5$

© 2022 CPM Educational Program. All rights reserved.