7th Grade - Week 3 - Assignment 1- Percents

In mathematics, a percentage is a number or ratio that can be expressed as a fraction of ___?

• 20

• 50

• 3.14

• 100

To convert from a decimal to a percent we multiply by 100.

This means we move the decimal to the _____ two places.

• right

• left

What is 78% written as a decimal?

• 0.78

• 7.8

• 7.80

• 0.078

What is 3.2% written as a decimal?

• 0.32

• 3.2

• 32.2

• 0.032

• 3.4

• 0.34

• 0.75

• 0.075

Express 0.86 as a percent.

• 8.6%

• 86%

• 8%

• .86%

Convert 0.09 to a percent.

• 90%

• 9/100

• 9

• 9%

Express 7% as a decimal.

• 0.7

• 0.75

• 7/100

• 0.07

Convert 33% to a decimal.

• 3.3

• 0.33

• 33/100

• 0,033

Write 75% as a decimal.

• 0.75

• 0.00075

• 7.5