Percents, Percents, Percents!!

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part of a whole.

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 * 0.20 = 10.

Tags

CCSS.6.RP.A.3C

Front

What is the formula for percent decrease?

Back

Percent Decrease = ((Original Value - New Value) / Original Value) * 100.

Tags

CCSS.6.RP.A.3C

Front

What is the formula for percent increase?

Back

Percent Increase = ((New Value - Original Value) / Original Value) * 100.

Tags

CCSS.6.RP.A.3C

Front

If 40% of a class of 30 students are boys, how many boys are there?

Back

12 boys (30 * 0.40 = 12).

Tags

CCSS.6.RP.A.3C

Front

What is 75% of 200?

Back

150 (200 * 0.75 = 150).

Tags

CCSS.6.RP.A.3C

Front

How do you 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) * 100 = 25%.

Front

What is the percent change if a price goes from $50 to $75?

Back

50% increase (Percent Change = ((75 - 50) / 50) * 100 = 50%).

Tags

CCSS.6.RP.A.3C

Front

If 60% of a number is 30, what is the number?

Back

50 (30 ÷ 0.60 = 50).

Tags

CCSS.6.RP.A.3C

Front

What is 19% of 200?

Back

38 (200 * 0.19 = 38).

Tags

CCSS.6.RP.A.3C