Module 4 Test Review

Adding Decimals

100

3.4 + 2.6

6.0

200

5.78 + 1.32

= 7.10

300

12.5 + 3.75

= 16.25

400

6.08 + 4.925

= 11.005

500

2.35 + 3.7

= 6.05

Subtracting Decimals

100

7.5 − 2.3

= 5.2

200

6.4 − 1.85

= 4.55

300

10 − 3.76

= 6.24

400

9.02 − 4.587

= 4.433

500

8.5 − 6.73

= 1.77

Multiplying Decimals

100

0.4 × 3

= 1.2

200

2.5 × 0.6

= 1.5

300

1.2 × 0.8

= 0.96

400

3.4 × 0.25

= 0.85

500

2.75 × 4

= 11 meters

Dividing Decimals

100

3.6 ÷ 3

= 1.2

200

4.5 ÷ 0.5

= 9

300

6.4 ÷ 0.8

= 8

400

7.2 ÷ 0.3

= 24

500

9.6 ÷ 0.4

= 24

Mystery

100

True or False:
When adding decimals, you must line up the decimal points.

True

200

Which is greater: 4.25 or 4.205?

4.25 is greater

300

True or False:
When multiplying a number by 0.1, the product is greater than the original number.

False

400

Which is closest to 5?
A) 4.82
B) 5.19
C) 5.01

C) 5.01

500

______ + 2.75 = 6.5. What is the number?

3.75