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Decimal Multiplication
Percent Problems
Decimal Division
Bonus
Bonus
100
2.4
What is 0.4 x 6
100
12.5
What is 50% of 25
100
0.624
What is 0.25 divided by 0.4
100
True
A ratio compares two numbers that have the same unit measure
100
Grid, cross multiplication, multiply one decimal by 10
What is another way to multiple decimals
200
0.30
What is 0.5 x 0.6
200
16
What is 20% of 80
200
23.33
What is 7 divided by 0.3
200
True
Percent problems can be written in three ways, 60%, 60/100, 0.60
200
Since decimal numbers are parts of a whole (1) they can be divided into a number more times than a whole number can.
Why do we get a bigger product when we divide a number (60) by a decimal (0.24)
300
0.0675
What is 0.15 x 0.45
300
50
70% of what = 35
300
2.14
What is 0.6 divided by 0.28
300
False
When you multiple by 100, you move the decimal places two places to the left?
300
8.96
What is 11.115 divided by 1.24
400
0.70
What is 0.20 x 0.35
400
60
35% of what = 21
400
1.45
What is 0.725 divided by 0.50
400
True
One way to divide decimals is by multiplying both the numerator and denominator by 100 to make it a whole number, then divide.
400
16 donuts, with 66 cents back
If Ms. B only has 20 dollars to buy her class donuts, and each donut cost 1.20 dollars, how many donuts can she buy?
500
0.0051
What is 0.17 x 0.03
500
58%
Johnny picked 26 apples over the weekend, he now only has 15 left. What percent of his apples did he eat?
500
0.71
What is 0.622 divided by 0.875
500
Ms.B!!!!
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