PERCENT OF A NUMBER (CHECK-IN 2)

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.

Front

How do you calculate the percent of a number?

Back

To calculate the percent of a number, multiply the number by the percent (as a decimal). For example, to find 25% of 200, calculate 200 x 0.25 = 50.

Front

If a team won 35% of their games and won 7 games, how many games did they play?

Back

20 games. (7 is 35% of 20.)

Front

What percent of 600 students are in Mr. Smith’s art class if 150 students are in the class?

Back

25%. (150 is 25% of 600.)

Front

If a video game costs $40 and Alisha saved 25% of the money, how much does she have?

Back

$10. (25% of $40 is $10.)

Front

What percent of 800 t-shirts are small if 400 are small?

Back

50%. (400 is 50% of 800.)

Front

At a camp, if 15 out of 25 boys chose to go swimming, what percent chose to swim?

Back

60%. (15 is 60% of 25.)

Front

What is the formula to find the percent of a total?

Back

Percent = (Part / Total) x 100.

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.

Front

If 40% of a number is 80, what is the number?

Back

200. (80 is 40% of 200.)