Unit 6 Math Review of Percents

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

How do you calculate a percentage?

Back

To calculate a percentage, divide the part by the whole and then multiply by 100. Formula: (Part/Whole) x 100 = Percentage.

Front

What is 40% of 180?

Back

72

Front

What does it mean if 30% of a group prefers something?

Back

It means that out of the total group, 30 out of every 100 people prefer that option.

Front

How do you convert a fraction to a percentage?

Back

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

Front

What is the ratio of oatmeal cookies to chocolate chip cookies if there are 5 oatmeal and 6 chocolate chip?

Back

5:6

Front

If Mr. D had 25 baseball cards and gave away 20, what percent did he give away?

Back

80%.

Front

Back

Front

If 60 students were polled and 30% said dogs were their favorite pets, how many preferred dogs?

Back

18 students.

Front

What is the formula to find the part when given the percentage and the whole?

Back

Part = (Percentage/100) x Whole.