AnswersSS-Math 7Multiplying Decimals

Dividing Decimals Answers

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Which correctly applies the distributive property to show an equivalent expression to (–2.1)(3.4)?

A
(2)(3) – (0.1)(0.4)
B
(–2)(3) + (–0.1)(0.4)
C
(2.1)(3) – (2.1)(0.4)
D
(–2.1)(3) + (–2.1)(0.4)
3

Kate gets a paycheck twice a month. Every month, a total of $345.67 is deducted from her paychecks for taxes. If she has received 7 paychecks so far this year, which best represents the total effect the taxes have had on the amount she has earned??

A
–$2,419.69
B
–$1,209.85
C
$1,209.85
D
$2,419.69
4

For the last 4.5 hours, the temperature has decreased at a rate of 2.8 per hour. Which best represents the overall change in temperature over this time period?

Question illustration
A
–12.6
Option A
B
–1.6
Option B
C
1.6
Option C
D
12.6
Option D
5

Which shows two products that both result in positive values?

A
(0.5)(–0.4) and (1.2)(–0.8)
B
(–0.5)(–0.4) and (1.2)(–0.8)
C
(0.5)(0.4) and (–1.2)(–0.8)
D
(0.5)(–0.4) and (1.2)(0.8)
6

Sydney applied the steps below to find the product of (3.1)(–1.6).Step 1: (3.1)(–1.6) = (–1.6)(3.1) Step 2: = _______________Step 3: = (–4.8) + (–0.16)Step 4: = –4.96Which expression correctly fills in the blank in Step 2?

A
(1.6)(3) – (1.6)(0.1)
B
(–1)(3) + (–0.6)(0.1)
C
(1)(3) – (0.6)(0.1)
D
(–1.6)(3) + (–1.6)(0.1)
8

What is the product of (–1.5)(0.8)?

A
–1.2
B
–0.7
C
0.7
D
1.2
10

What is the product of (–0.9)(–2.4)?

A
–3.3
B
–2.16
C
2.16
D
3.3

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