Unit 4 Review

Shifting Decimals

100

#19 (page 187)

left, two places

200

#15 (page 186)

The digits shift to the right once, so the decimal shifts to the left once.

300

527.2 x 0.01

5.272

Multiplying Decimals

100

#8 (page 184)

5 x 0.03

50 x 0.3

3 x 50

300 x 5

500 x 30

200

#24 (page 188)

less than because 0.1 is less than 1

300

#17 (page 187)

F, D, C, B, A, E

Word Problems

100

#18 (page 187)

25 cm

200

#23 (page 188)

207.9 grams

300

#2 (page 183)

Yes! He will have $1,534 which is greater than his goal of $1,500.

Powers of 10

100

#9 (page 185)

B, C, E

200

#1 (page 183)

43: D,E

430: B,C

4,300: A,F

300

#4 (page 186)

A, C

Random

100

#22 (page 188)

$448

200

#20 (page 188)

Answer: 63,616

Estimate: 64,000

300

1/6 x 4 1/2

3/4