CPM Homework Help : MC1 Problem 6-132

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6-132.

Simplify each of the following expressions.

Hint:

For parts (a), (b), and (c), refer to the Lesson 4.1.2 Math Notes box. The Order of Operations is very important when simplifying expressions.

$\left(4 + 8\right) ÷ 12 + 23$
Answer (a):
$24$

$3 · \left(8 − 5\right) + 6 + 2 · 7$
Hint (b):
Be sure to simplify the expression inside of the parentheses before multiplying from left to right.
More Help (b):
$\enclose{circle}[mathcolor="orange"]{\color{black}{3 \cdot ( 8 - 5 )}} + \enclose{circle}[mathcolor="orange"]{\color{black}{(6)}} + \enclose{circle}[mathcolor="orange"]{\color{black}{ 2 \cdot 7 }}$
Make sure you carry out each multiplication operation before using addition! The terms are circled above.

$49 ÷ 7 · 5 + 4 · \left(3 + 2\right)$
Hint (c):
Have you circled the terms?
More Help (c):
Make sure you read the Math Notes closely! It is important to multiply and divide from left to right, or you may simplify the expression incorrectly.
Answer (c):
$55$

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