Percents Practice

Front

What is a percent?

Back

A percent is a way to express a number as a fraction of 100. It is often used to compare ratios and express proportions.

Front

How do you calculate a percentage of a number?

Back

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

Front

What is 5% of 180?

Back

9

Front

If 60% of 160 students participated in a fundraiser, how many students participated?

Back

96 Students

Front

What is 20% of 360 runners?

Back

72

Front

How do you find the total number when given a percentage of it?

Back

To find the total, divide the part by the percentage (in decimal form). For example, if 80% of the seeds grew and 48 grew, the total is 48 ÷ 0.80 = 60.

Front

What percent of 30 cars finished the race if 12 finished?

Back

40%

Front

If 80% of the seeds planted grew and 48 grew, how many seeds were planted?

Back

60

Front

What is the formula to convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and multiply by 100. For example, 1/4 = (1 ÷ 4) x 100 = 25%.

Front

How do you express 25 out of 100 as a percent?

Back

25%.