Percentages

What will the new price for the mirror be after the discount?

• 25%

• $12.50

• $37.50

• $50.00

Sally got 22 questions wrong on her quiz that had 40 questions on it. What is the percentage of the questions she got wrong?

• 45%

• 55%

• 32%

• 95%

What is 9% of 200?

• 100

• 18

• 20

In a class of 30 kids, 3 forgot to get their report cards signed. What percent is that?

• 3%

• 30%

• 10%

• 70%

Name the two steps to calculating a percent of a number

• Cross multiply then divide

• Change the decimal to a percent then cross multiply

• Change the percent to a decimal then divide

• Change the percent to a decimal then multiply

How do you calculate the percentage change?

• Use the No-No rule

• Use the Yes-Yes rule

• Cross Multiply & Divide

• Change the percent to a decimal and multiply

When calculating Part to Whole

• The Part goes in the denominator

• Change the decimal to a percent and multiply

• Use the No-No Rule

• Set it up as a proportion equal to x over 100

What is 2/5 as a percent? 

• 40%

• .40

• 25%

• 50%

Tom saves 50% of his paycheck. If his pay is $148, how much will he save?

• $148

• $70

• $50

• $74

What fraction is equivalent to 25%? 

• 1/2

• 1/5

• 1/4

• 3/4