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Converting Fractions, Decimals and Percents
Estimating Percents
Percent Problems
Markups
Discounts
100
Write as a percent:

73⁄100
73%
100
Estimate:

50% of 121
about 60
100
Solve using a proportion or equation:

What is 60% of 55?
33
100
A video game costs a store $20. If the store sells the game for 33 dollars, what is the amount of markup?
$13
100
The regular price for a Justin Bieber t-shirt is 22.99. If the t-shirt is on sale for $14.99, what is the amount of discount?
$8
200
Write as a percent:

12⁄50
24%
200
Estimate:

20% of 1012
about 200
200
Solve using a proportion or equation:

3 is 60% of what number?
5
200
What is the formula for percent of markup?
percent of markup = amount of markup ÷ store's cost
200
Explain how to find a discount.
Possible answer: First find the amount of discount by multiplying the regular price by the percent of discount. Then subtract the amount of discount from the regular price.
300
Write as a decimal:

63.5%
0.635
300
Estimate:

24% of 47
about 12
300
Solve using a proportion or equation:

12 is what percent of 96?
12.5%
300
Find the percent of markup:

store's cost: 75 dollars
selling price: 90 dollars
20%
300
Find the sale price:

regular price: $56.50
percent of discount: 60%
$22.60
400
Write as a decimal AND a percent:

5⁄8
0.625 AND 62.5%
400
Of the 813 students at Gilbert H. Hood Middle School, 76% say that they like the Red Sox. Estimate the number of students who like the Red Sox.
About 600 students like the Red Sox.
400
Solve using a proportion or equation:

0.777 is 7% of what number?
11.1
400
Find the selling price

store's cost: $118.12
percent of markup: 60%
$188.99
400
Find the sale price:

regular price: $235.50
percent of discount: 5%
$247.89
500
Write as a fraction AND a decimal:

212%
23⁄25 AND 2.12
500
Explain how to estimate a 15% on the following total bill:

$38.42
Round 38.42 to 40. Then find 10% of 40 by moving the decimal to the left once, which is 4.00. Find 5% of 4.00 (2.00) by dividing it in half, since 5% is half of 10%. Then add 4.00 and 2.00 to get $6.00.
500
Solve using a proportion or equation:

About 80% of an airline's flights were on time one month. If 28,000 flights were on time, how many total flights did the airline have that month?
35,000 flights
500
A baseball bat costs a store $29.50. If the store marks up the price 55%, what is the selling price of the bat? Round to the nearest cent.
$45.73
500
You buy a pair of in-line skates at the sale price of $54. This price is 40% off the regular price. Find the regular price of the skates.
The regular price of the skates is $90.