Percent of a Number-Review Menu

Front

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

Back

To find a percentage of a number, multiply the number by the percentage (in decimal form). Formula: (Percentage/100) * Number.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100. For example, 75% becomes 0.75.

Front

What is 100% of a number?

Back

100% of a number is the number itself.

Front

If 25% of a number is 50, what is the number?

Back

The number is 200. (50 / 0.25 = 200)

Front

What does it mean if a student scores 80% on a test?

Back

It means the student answered 80% of the questions correctly.

Front

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

Back

Divide the first number by the second number and multiply by 100. Formula: (Part/Whole) * 100.

Front

What is 15% of 200?

Back

15% of 200 is 30. (200 * 0.15 = 30)

Front

If a shirt costs $40 and is on sale for 25% off, what is the sale price?

Back

The sale price is $30. (40 - (0.25 * 40) = 30)

Front

What is 70% of 50?

Back

70% of 50 is 35. (50 * 0.70 = 35)

Front

If 60% of a class of 30 students are girls, how many girls are in the class?

Back

There are 18 girls in the class. (30 * 0.60 = 18)