Module 7 (Lesson 7.1-7.2) Practice

Front

What is the formula to calculate 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

What is 12% of 40?

Back

4.8

Front

How do you find the percentage of a shaded area in a figure?

Back

To find the percentage of a shaded area, divide the area of the shaded part by the total area and multiply by 100.

Front

What percent of the figure is not shaded if 80% is shaded?

Back

20%.

Front

How do you calculate a tip based on a percentage?

Back

To calculate a tip, multiply the total bill by the tip percentage (in decimal form).

Front

If a meal costs $25.50 and a 20% tip is given, how much is the tip?

Back

$5.10.

Front

What is the formula to calculate the percentage of a part compared to a whole?

Back

(Part/Whole) * 100.

Front

If 12 out of 40 cats were adopted, what percent of cats were adopted?

Back

30%.

Front

How do you round a percentage to the nearest hundredth?

Back

Look at the third decimal place; if it's 5 or more, round up the second decimal place by one.

Front

What is 30.25% rounded to the nearest hundredth?

Back

30.25%.