6th Grade: Percents

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 convert a decimal to a percent?

Back

To convert a decimal to a percent, multiply the decimal by 100 and add the percent symbol. For example, 0.75 x 100 = 75%.

Front

What is the formula to calculate percent decrease?

Back

Percent decrease = ((Original Value - New Value) / Original Value) x 100.

Front

If a shirt costs $40 and is on sale for $30, what is the percent decrease?

Back

Percent decrease = ((40 - 30) / 40) x 100 = 25%.

Front

What is 0.25 written as a percent?

Back

0.25 as a percent is 25%.

Front

How do you find the percent of a number?

Back

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

Front

What does it mean if 30% of a class passed a test?

Back

It means that 30 out of every 100 students in the class passed the test.

Front

How do you calculate the total amount after a percent increase?

Back

Total Amount = Original Amount + (Original Amount x Percent Increase). For example, if you have $100 and increase it by 10%, the total amount is $100 + ($100 x 0.10) = $110.

Front

What is 10% of 200?

Back

10% of 200 is 20.

Front

If 60 is 75% of what number, how do you find that number?

Back

To find the number, divide 60 by 0.75. So, 60 / 0.75 = 80.