Blockmath77 - Copy

Fractions and Percents

100

What is 15% as a fraction and decimal?

15/100 or 3/20 and 0.15

200

10/25

equals what percent?

40%

300

8/40

equals what percent?

20%

400

What is 6% as a decimal?

0.06

500

What is 0.1% as a decimal?

0.001

2 ways

100

What are two ways to calculate a 10% increase of 

x?

1. 

x+0.1x

2.

1.1x

200

What are two ways to calculate a 25% decrease of 

x?

1.

x-0.25x

2.

0.75x

300

What are two ways to calculate a 7% increase of 

x?

1.

x+0.07x

2.

1.07x

400

What are two ways to calculate a 30% decrease of 

x?

1.

x-0.3x

2.

0.7x

500

What are two ways to calculate a 12.5% decrease of 

x?

1.

x-0.125x

2.

0.875x

"Percent of"

100

What is 50% of 12?

6

200

What is 10% of 50?

5

300

What is 25% of 60?

15

400

What is 40% of 80?

32

500

What is 15% of 35?

5.25

Percent Increase/Decrease

100

What is 10% of 18?

1.8

200

If you have a 20% off discount, what percent do you pay? (also, what is the fraction and decimal of that percent?)

80%, 80/100 or 8/10 or 4/5, and 0.8 or 0.80

300

What is 20% off of $60?

$48 (20% of $60 is $12. 60-12=48)

400

Corbin got a raise from $8 to $10 per hour. What is the percent increase?

25% increase ($2 is 25% of 8)

500

Sheridan is getting a 12% increase in pay. If she makes $300 a week now, how much will she make after her raise?

$336 per week (12% of $300 is $36)

Multipliers

100

Zoe is calculating 13% of 45. What should she multiply 45 by?

45(?)

0.13 or 

13/100

200

Miles is calculating a 10% increase of 58.80. What could he multiply 58.80 by?

58.80(?)

1.10 (or 1.1)

300

Ava is calculating a 15% discount (decrease) of $30. What could she multiply $30 by to find the new price after the discount?

30(?)

0.85

400

Duncan was calculating what his total would be after adding a 15% tip. What could he multiply by?

1.15

500

A price is reduced by 55%. What multiplier could you use to calculate the new price?

0.45