CPM Homework Help : CC2MN Problem 5-71

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Home > CC2MN > Chapter 5 > Lesson 5.2.4 > Problem 5-71

5-71.

Evaluate the following expressions.

$-5+2(8-12)$
Hint (a):
Follow the Order of Operations -- Circle the terms.

$( - 5 + 2 ) ( 8 - 12 )$
Hint (b):
Follow the same steps as part (a).

$- 5 + 2 \cdot 8 - 12$
Hint (c):
Follow the same steps as (a).
Step 1 (c):
Multiply $2$ and $8$ .
Step 2 (c):
Combine the remaining terms.
Answer (c):
$-1$

$\frac { 1 } { 2 } ( - 6 ) ( 4 + 10 )$
Hint (d):
Follow the same steps as part (a).
Step 1 (d):
Evaluate the operations within the parentheses.
Step 2 (d):
Multiply from left to right.
Answer (d):
$-42$

$- \frac { 2 } { 3 } \cdot 6 + 15 \div ( - 3 )$
Hint (e):
Follow the same steps as part (c).

$( 7 - 2 ) ^ { 2 } - 5 \div 5$
Hint (f):
Follow the same steps as part (a).
Answer (f):
$24$

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