Percent Problems

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100. It is denoted by the symbol '%'. For example, 50% means 50 out of 100.

Front

How do you calculate the percent grade on a test?

Back

To calculate the percent grade, divide the number of correct answers by the total number of questions, then multiply by 100. Formula: (Correct Answers / Total Questions) x 100.

Front

If Shirley spelled 12 out of 15 words correctly, what percent did she get?

Back

80% (calculated as (12/15) x 100 = 80).

Front

How do you find 30% of a number?

Back

To find 30% of a number, multiply the number by 0.30. For example, 30% of $20 is $20 x 0.30 = $6.

Front

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

Back

To find what number a percent is of, use the formula: Part = Percent x Whole. Rearranged, Whole = Part / Percent.

Front

If 15 is 75% of what number, how do you find that number?

Back

To find the number, use the formula: Whole = Part / Percent. Here, Whole = 15 / 0.75 = 20.

Front

How do you calculate the number of successful attempts in a percentage problem?

Back

Multiply the total attempts by the percentage (as a decimal). For example, if Madelyn attempted 20 shots and made 45%, she made 20 x 0.45 = 9 shots.

Front

What does it mean if Eric earned 60 points out of 75 possible points?

Back

It means Eric's percent grade is calculated as (60/75) x 100 = 80%.

Front

What is the relationship between fractions and percentages?

Back

Fractions can be converted to percentages by multiplying by 100. For example, 1/2 = 0.5 x 100 = 50%.

Front

How do you express a percentage as a decimal?

Back

To express a percentage as a decimal, divide by 100. For example, 25% as a decimal is 25/100 = 0.25.