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 often used to compare ratios.

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 20% of 50, calculate 50 x 0.20 = 10.

Tags

CCSS.6.RP.A.3C

Front

What is 40% of 100?

Back

40.

Tags

CCSS.6.RP.A.3C

Front

If 25% of a number is 30, what is the number?

Back

120. (30 ÷ 0.25 = 120)

Tags

CCSS.6.RP.A.3C

Front

What is 90% of 250?

Back

225.

Tags

CCSS.6.RP.A.3C

Front

How do you find the percentage of correct answers on a test?

Back

Divide the number of correct answers by the total number of questions, then multiply by 100. For example, if you got 19 out of 25 correct, (19 ÷ 25) x 100 = 76%.

Front

What is 25% of 80?

Back

20.

Tags

CCSS.6.RP.A.3C

Front

If a jar has 55 jellybeans and 40% are red, how many are red?

Back

22.

Tags

CCSS.6.RP.A.3C

Front

If Mrs. Patric bought 15 expo markers and 20% were black, how many were NOT black?

Back

12.

Tags

CCSS.6.RP.A.3C

Front

What does it mean if a number is increased by a certain percent?

Back

It means you add that percent of the original number to itself. For example, increasing 100 by 20% means adding 20 (which is 20% of 100) to 100, resulting in 120.

Tags

CCSS.6.RP.A.3C