Multiplying Decimals by 10, 100, and 100
Triple Points (300 Points)
0.365 x 100
36.5
Use Place value blocks
3.3 x 3
9.9
6.22 x 3
18.66
Double Points (200 Points)
1.2 x 3.6
4.32
Triple Points (300 points)
The wings of a 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?
1846 times
Double Points (400 Points)
0.001 x 10
0.01
Double Points (400 points)
Use Place value blocks
4 x 0.46
1.84
Double Points (400 Points)
12 x 4.8
57.6
0.4 x 0.7
0.28
Erin wants to buy 11 bars of soap. One bar of soap costs $1.60. How much will the 11 bars cost?
$17.60
Double Points (600 Points)
7.25 x 1000
7250
Use the grid
0.5 x 0.2
0.1
Double Points (600 Points)
9 x 0.23
2.07
8.6 x 0.08
0.688
The airline that Mrs. Hamilton is using has a baggage weight limit. He has 5 bags weighing 18.4 pounds each. What is the combined weight of her baggage?
92
Double Points (800 Points)
0.004 x 10^3
4
Double Points (800 Points)
Use the gird
0.4 x 0.1
0.04
405 x 0.47
190.35
Double Points (800 Points)
18.1 x 3.7
66.97
Double Points (800 Points)
Gavin had 7 apples weighing 5.89 pounds each. How much did the apples weigh all together.
41.23
Double Points (1,00 Points)
6.02 x 10^2
602.0
Use place value blocks
4 x 0.6
2.4
170 x 0.003
0.51
3.2 x 2.8
8.96
Nessa practices gymnastics 6 days per week. If she practices a total of 4.5 hours each day, how many hours does the Nessa practice?
27