Percent Word Problems

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 the percentage of a number?

Back

To calculate the percentage of a number, multiply the number by the percentage (in decimal form) and then divide by 100.

Front

What is the formula for finding the part when given the whole and the percent?

Back

Part = (Percent / 100) * Whole.

Front

If a student answers 80% of 30 questions correctly, how do you find the number of correct answers?

Back

Multiply 30 by 0.80 (80% in decimal) to get 24 correct answers.

Front

How do you find what percent one number is of another?

Back

Divide the part by the whole and multiply by 100. (Percent = (Part / Whole) * 100).

Front

What is the percent proportion?

Back

The percent proportion is a way to express the relationship between part, whole, and percent: Part/Whole = Percent/100.

Front

If 12 out of 30 cars finished a race, how do you find the percent of cars that finished?

Back

Divide 12 by 30 and multiply by 100 to get 40%.

Front

What does it mean to find 25% of a number?

Back

Finding 25% of a number means to calculate one-fourth of that number.

Front

How do you round a number to the nearest whole number?

Back

If the decimal is 0.5 or higher, round up. If it's less than 0.5, round down.

Front

If Sarah earns $20 and spends 30% of it, how do you calculate her spending?

Back

Multiply $20 by 0.30 to find that she spent $6.