CPM Homework Help : MC1 Problem 2-132

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2-132.

Simplify each expression below. For each expression, draw a picture or show how you know your answer makes sense.

$5+(−4)+12$
Answer (a):
$5+(−4)+12=13$
Remember to show how you know.

$6(−2)+10$
Answer (b):
$6(−2)+10=−2$
Remember to show how you know.

$100(−5)$
Answer (c):
$100(−5)=−500$
Remember to show how you know.

$−212+(−102)$
Hint 1(d):
Visualizing is helpful.
Hint 2(d):
$−212$
Hint 3(d):
$+ \left(−102\right)$

$4+6(3)+2(5−1)$
Hint (e):
Remember to use the order of operations.
Refer to the Math Notes box in Lesson 2.4.1 for a reminder.

$5+3(5)−4(5)$
Step 1(f):
Simplify: $5+15−20=$ ?

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