Percentages

Concepts

100

This is what "Percent" means

What is "out of 100"

200

On a fraction, what number should you have in the denominator to represent a percent?

What is 100?

300

To change from a percent to a decimal, how many places should you move the decimal point?

What is two places (because you are dividing by 100)?

400

If a phone battery is 50% full, what is another word you can use to describe this?

What is half?

500

A "quarter" represents 25% of a dollar. But "quart" means 4. Why is a quarter called a quarter?

25% is equivalent to "one quarter" which is the fraction

1/4

Fraction <--> Percent

100

Change to a percent: 

43/100

What is 43%

200

Change to fraction: 81%

What is 

81/100

300

Change to a fraction: 125%

What is 

125/100

400

Change to a percent: 

12/50

What is 24%

500

Change to a percent: 

15/20

What is 75%

Decimal <--> Percent

100

50% as a decimal

0.5 or 0.50

200

0.75 as a percentage

75%

300

1.45 as a percentage

145%

400

8% as a decimal

0.08

500

100% as a decimal

1 or 1.00

10% of a Number

100

10% of a 50

What is 5?

200

10% of 25

What is 2.5?

300

10% of 47

What is 4.7?

400

10% of 129

What is 12.9?

500

10% of 1

What is 0.1?

Percent of a Number

100

What is 30% of 50?

15

200

What is 25% of 80

20

300

What is 12% of 200

24

400

What is 5% of 50

2.5

500

What is 130% of 50?

65