Percent of a Number

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100. It is denoted by the symbol '%'. For example, 50% means 50 out of 100.

Front

How do you calculate a percent of a number?

Back

To calculate a percent of a number, multiply the number by the percent (in decimal form). For example, to find 30% of 200, calculate 200 x 0.30 = 60.

Front

What is 10% of 50?

Back

5

Front

What is 20% of 150?

Back

30

Front

If you have 100 students and 25% are girls, how many girls are there?

Back

25 girls (100 x 0.25 = 25).

Front

What is 50% of 80?

Back

40

Front

How much is 15% of $200?

Back

$30 (200 x 0.15 = 30).

Front

If a shirt costs $40 and is on sale for 25% off, how much is the discount?

Back

$10 (40 x 0.25 = 10).

Front

What is 5% of 60?

Back

3

Front

How do you convert a percent to a decimal?

Back

To convert a percent to a decimal, divide by 100. For example, 25% becomes 0.25.