Percentages

Presentation

•

Mathematics

•

6th - 9th Grade

•

Medium

•

CCSS

6.RP.A.3C, 5.NF.B.3, 4.NF.A.1

Standards-aligned

Lauren Wisehart

Used 609+ times

FREE Resource

7 Slides • 9 Questions

The

A lady was purchasing a clearance item that was 40% off. There was a sale on clearance for and additional 10% off. The item was originally $10. The sales associate said the new price was $5.40. The customer argued it should be $5.

Who is correct?

Question

Why do we need to understand percentages?

Multiple Choice

What percentage of the shape is shaded blue?

100%

75%

65%

50%

Multiple Choice

What percent is in color?

620%

1/2

60%

62%

Converting between Percent, Fractions, and Decimals

0.025=

62%=

4/5=

Multiple Choice

What fraction is equivalent to 25%?

1/3

1/4

1/5

1/8

Multiple Choice

Convert 73% to a decimal

73.0

0.37

0.73

0.7

What is 70% of 600?

28 is 35% of what number?

What percent of 300 is 50?

Multiple Choice

What is 10% of 730?

7300

350

735

Multiple Choice

Calculate 25% of 400

100

200

150

Multiple Choice

What percent of 50 is 20?

40%

25%

2.5%

Multiple Choice

34% of what number is 51?

150

196

Discounts

If an item is X% off, to find the discount, multiply the price of the item * the percent as a decimal.
To find how much you pay, subtract that from the price.
Shortcut: Subtract the % discount from 100. Then multiply that percent as a decimal * the price.

Sales Tax

Find the sales tax % as a decimal.
Multiply by the price/total.
Add to the total.
Shortcut: Find the decimal for the sales tax %. Add a 1. Then multiply to find your total.
Example: Sales tax 7%--> Multiply by 1.07

Multiple Choice

A St. Louis Cardinals hat costs $18. If there is 8% sales tax, what is the total cost of the hat including tax?

$1.44

$22.74

$21.36

$19.44

The

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