Percents/Big Ideas 5.5-5.6

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.

Front

How do you find 10% of a number?

Back

To find 10% of a number, divide the number by 10.

Front

What is 20% of 50?

Back

10

Front

How do you calculate a percentage increase?

Back

To calculate a percentage increase, multiply the original amount by the percentage (as a decimal) and add it to the original amount.

Front

What is 50% of 200?

Back

100

Front

How do you find 2% of a number?

Back

To find 2% of a number, multiply the number by 0.02.

Front

What is 70% of 200?

Back

140

Front

If a bill is $80 and there is a 5% increase, how much will the new bill be?

Back

$84 (5% of $80 is $4, so $80 + $4 = $84).

Front

What is 25% of 80?

Back

20

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and multiply by 100.