Intro to percents

Front

What is a percent?

Back

A percent is a way to express 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 convert a decimal to a percent?

Back

To convert a decimal to a percent, multiply the decimal by 100 and add the percent symbol. For example, 0.56 becomes 56%.

Front

What is 25% of 100?

Back

25% of 100 is 25.

Front

How do you find the percent of a number?

Back

To find the percent of a number, multiply the number by the percent (as a decimal). For example, to find 20% of 50, calculate 50 x 0.20 = 10.

Front

What percent is 15 out of 60?

Back

15 out of 60 is 25%. (15/60 = 0.25, and 0.25 x 100 = 25)

Front

What is 0.75 written as a percent?

Back

0.75 written as a percent is 75%.

Front

How do you calculate 10% of a number?

Back

To calculate 10% of a number, divide the number by 10. For example, 10% of 80 is 8.

Front

What percent of the grid is shaded if 3 out of 5 parts are shaded?

Back

If 3 out of 5 parts are shaded, then 60% of the grid is shaded. (3/5 = 0.6, and 0.6 x 100 = 60)

Front

What is the formula to calculate percent change?

Back

The formula for percent change is: ((New Value - Old Value) / Old Value) x 100.

Front

If a shirt costs $40 and is on sale for $30, what is the percent discount?

Back

The percent discount is 25%. (10/40 x 100 = 25)