Unit 4 Review

Multiplying By a Whole Number

100

^{2 x (1/3)}

2/3

200

3 x (2/9)

6/9 or 2/3

300

4 x (5/6)

20/6 or 3 and 1/3

400

3 x (2/12)

6/12 or 1/2

500

10 x (10/100)

1

Word Problem

100

Each cake weighs 1/4 of a pound. How much does 12 cakes weigh?

3 pounds

200

I take a 1/2 mile walk every day. How far do I walk after 6 days?

3 miles.

300

My lasagna recipe calls for 1/3 of a cup of mozzarella. I have to quadruple my recipe for a potluck, so I need to make 4 batches. How much mozzarella do I need?

4/3 cups or 1 and 1/3 cups

400

Marissa needs to feed her 6 cats. They each eat 4/5 of a cup of cat food. How much food will she scoop out?

24/5 cups or 4 and 4/5 cups

500

Steve gets 1/4 inch of hair cut every time he goes to the barber. How much hair does he cut per year if he goes monthly?

3 inches

Converting Fractions

100

3/10

0.3

200

21/100

0.21

300

5/100

0.05

400

3 and 31/100

3.31

500

9 and 71/100

9.71

Adding

100

0.21+0.3

0.51

200

0.47+0.65

1.12

300

2.81+1.7=

4.51

400

Convert the fractions and add them to create one decimal.

3/10 + 64/100=

0.94

500

Convert the fractions and add them to create one decimal.

85/100 + 4/10=

1.25

Comparing

100

0.5 ___ 0.21

>

200

2.3 ___ 3.2

<

300

4.6 ___ 4.27

>

400

Name a decimal that is bigger than 0.21 and smaller than 0.56

Answers may vary :)

500

Name a decimal that is bigger than 0.92 and smaller than 1

Answers may vary :)