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 convert a percent to a decimal?

Back

To convert a percent to a decimal, divide the percent by 100. For example, 25% becomes 0.25.

Front

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

Back

To find a percent of a number, convert the percent to a decimal and multiply it by the number. For example, to find 20% of 50, calculate 0.20 x 50 = 10.

Front

What is the first step in calculating a percent of a number?

Back

The first step is to convert the percent to a decimal.

Front

If 3 out of 30 students forgot their report cards, how do you find the percent?

Back

Divide the number of students who forgot by the total number of students (3/30) and multiply by 100 to get 10%.

Front

What does a 15% discount mean?

Back

A 15% discount means you pay 85% of the original price. For example, if an item costs $100, a 15% discount means you pay $85.

Front

How do you calculate the discount amount?

Back

To calculate the discount amount, multiply the original price by the discount percentage (as a decimal). For example, for a $100 item with a 15% discount: $100 x 0.15 = $15.

Front

What is the percentage of questions answered incorrectly if 22 out of 40 are wrong?

Back

To find the percentage, divide the number of wrong answers by the total number of questions (22/40) and multiply by 100, which equals 55%.

Front

How do you find the new price after a discount?

Back

To find the new price after a discount, subtract the discount amount from the original price. For example, if the original price is $50 and the discount is $12.50, the new price is $50 - $12.50 = $37.50.

Front

What is the relationship between fractions, decimals, and percents?

Back

Fractions, decimals, and percents are different ways to represent the same value. For example, 1/2 = 0.5 = 50%.