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Multiplying Decimals by 10, 100, and 100
Estimating Products of Decimals
Multiplying a Decimal by a Whole Number
Multiplying Two Decimals
Word Problems
100
0.365 x 100
What is 36.5
100

45.3 x 9

What is 450

100
6.22 x 3
What is 18.66
100
1.2 x 3.6
What is 4.32
100

The wings of a ruby-throated hummingbird beat an average of 52 times per second. If it hovers for 35.5 seconds, on average how many times does its wings beat?

What is 1846 times

200
0.001 x 10
What is 0.01
200

204 x 0.46

What is 100

200
12 x 4.8
What is 57.6
200
0.4 x 0.7
What is 0.28
200

Elijah has $20 in her pocket. He wants to buy 11 bars of soap. One bar of soap costs $1.60. How much will the 11 bars cost? Does he have enough money?

11 bars costs $17.60. He has enough money.

300
7.25 x 1000
What is 7250
300

25 x 0.67

What is 25 or 30

300
9 x 0.23
What is 2.07
300
8.6 x 0.08
What is 0.688
300

The airline that Mrs. Hamilton is using has a baggage weight limit of 41 pounds. She has two green bags, each weighing 18.4 pounds, and one blue bag weighing 3.7 pounds. What is the combined weight of her baggage?

What is 40.5 pounds

400
0.004 x 10 cubed
What is 4
400

59 x 3.21

What is 180

400
405 x 0.47
What is 190.35
400
18.1 x 3.7
What is 66.97
400

At the city triathlon, Gavin bike 110 miles, run a 23.5-mile marathon, and swim. If the total distance of his triathlon is 135.7 miles, how far did Gavin swim?

What is 2.2 miles

500
6.02 x 10 squared
60.2
500

Dentalia shells were used by some Native Americans to make jewelry. Each dentalia shell is 1.25 inches long. If a necklace had been made with 18 dentalia shells, about how long was this necklace?

What is 20 or 18

500
170 x 0.003
What is 0.51
500
3.2 x 2.8 x 6.1
What is 54.656
500

Inessa practices gymnasitcs 6 days per week. If she practices a total of 120 hours in a 4-week period, how many hours per day does the Inessa practice?

What is 5 hours