Percents Practice

Front

What is a percent?

Back

A percent is a way to express a number as a fraction of 100. It is often used to compare ratios or to describe proportions.

Front

How do you calculate a percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 20% of 50, calculate 50 * 0.20 = 10.

Front

What is 20% of 360?

Back

72

Front

If 60% of 160 students participated in a fundraiser, how many students participated?

Back

96 students

Front

What is 80% of 60 seeds?

Back

48 seeds

Front

How do you find the percentage of a total?

Back

To find the percentage of a total, divide the part by the whole and then multiply by 100. For example, if 24 out of 30 problems were correct, the percentage is (24/30) * 100 = 80%.

Front

What is 30% of $20?

Back

$6

Front

If a student answers 80% of 30 problems correctly, how many problems did they answer correctly?

Back

24 problems

Front

What does it mean if a number is increased by a percentage?

Back

Increasing a number by a percentage means to add that percentage of the number to the original number. For example, increasing 100 by 20% means adding 20 to 100, resulting in 120.

Front

What is the formula to calculate the percentage increase?

Back

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