Illustrative Unit 5 Review

Comparing Decimals

100

Which decimal is GREATER? Explain

2.5 or 2.3

2.5 is 5 tenths, and 2.3 is 3 tenths. 5 > 3!

200

True or False and explain

0.99 > 1.00

False

300

Identify three values that are less than 1, but greater than 0.

any decimal or fraction

Rounding

100

Round to the nearest whole number and explain 

4.6

5

200

Round to the nearest tenth & explain

2.84

The hundredths digit is 4 (less than 5), so round down.

300

True or False and explain.

1.456 rounded to the nearest whole number is 1.4

False, it would be 1

Addition & Subtraction

100

7.2 + 3.5 =

 10.7

200

15.3 - 8.7 = ?

6.6

300

42.15 + 9.8

51.95

Multiplication

100

4 × 0.2

0.8

200

2.5 × 0.4

1

300

6 × 0.05 = ?

0.30 (or 0.3)

Division

100

2 ÷ 0.1 =

20

200

0.8 ÷ 2 = ?

0.4

300

7.2 ÷ 4 = ?

1.8

400

3.6 ÷ 0.6 =

6

500

12.5 ÷ 0.5 = ?

25