Assignment 3.3 Multiplying Decimals by Whole Numbers

Lesson and Assignment 3.3

Multiplying Decimals by Whole Numbers

Multiple Choice

Multiply

10 x 5.8

• 580.0

• 58.0

• 5.80

Multiple Choice

A donut store uses 8.6 kg of sugar each hour. How many kg of sugar will the store use in 4 hours?

• 334 kg

• 34.4 kg

• 344 kg

• 3.44 kg

Multiple Choice

If you built a tower with 9 blocks that are 3.7 cm tall, how tall will your tower be? Use decimal benchmarks to estimate your answer. Is it a reasonable answer?

• 3.33 cm

• 33.3 cm

• 333.0 cm

• 0.333 cm

10 x 5.8

10

x 58

580

Count the decimal place and put it in 58.0

Multiple Choice

Multiply

4 x 3.7

• 14.0

• 148

• 14.8

Multiple Choice

Multiply

2.0 x 3.4

• 680

• 6.80

• 6.8

Multiple Choice

Multiply

6 x 4.2

• 252

• 25.2

• 2.52

Multiple Choice

Multiply

4 x 9.1

• 36.4

• 364

• 3.64

Multiple Choice

Shannon bought 4 metal rods that are each 3.2 cm long. If she lines them up, how long will the line be?

• 128 cm

• 1,280 cm

• 12.9 cm

• 12.8 cm

Multiple Choice

A class puts 4 weights on a scale. Each weight is 3.4 kg. How much weight is on the scale?

• 13.6

• 136

• 1.36

• 13.8

Multiple Choice

A race car driver can drive one lap in 3.1 minutes. How long will it take the car to go 3 laps?

• 9.3 minutes

• 93 minutes

• 930 minutes

• 9.2 minutes