Week 7 Review: Answers and Solutions

Below are the answers to the Week 7 Review Exercises and Problems. Since I cannot align the decimals using this platfrom, I just wrote the answers. You can check your answer using a calculator.

Exercise 1
a.) 1.2 + 3.02 + 4.003 (Answer: 8.223)
b.) 1.05 + 0.006 + 4.501 (Answer: 5.55)
c.) 12.1 – 4.25 (Answer: 7.85)
d.) 11.8 – 2.005 (Answer: 9.795)
e.) 12.1 – 21.53 + 2.563 (Answer: -6.867)

Exercise 2
a.) 3 × 0.41 (Answer: 1.23)
b.) 0.02 × 0.56 (Answer: 0.0112)
c.) 5.1 × 0.45 (Answer: 2.295)
d.) 5.8 × 4.25 (Answer: 24.65)
e.) 2.8 × 3.2 × 0.6 (Answer: 5.376)

Exercise 3
a.) 3 ÷ 0.2 (Answer: 15)
b.) 5.1 ÷ 0.3 (Answer: 17)
c.) 6.4 ÷ 4 (Answer: 1.6)
d.) 8.1 ÷ 0.009 (Answer: 900)
e.) 0.125 ÷ 0.25 (Answer: 0.5)

Problems

1.) Convert 0.25 to fraction. (Answer: 1/4)

2.) Convert 1/8 to decimal. (Answer: 0.125)

3.) Convert 3/4 to percent. (Answer: 75%)

4.) Convert 35% to fraction. (Answer: 7/20)

5.) Convert 20% to decimal. (Answer: 0.2)

Enjoy your review!

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2 Responses

  1. titay says:

    I think you’ve got it wrong in Exercise 1 d.

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