Fractions, Decimals, and Percents
Converting Fractions
Area and Perimeter
Finding Sale Prices
Inserting Parentheses
100
1/2 written as a percentage
What is 50%
100
Show the class how to convert 3/4 into a percentage.
What is 3/4. You must multiply the numerator and the denomenator by a number that will = 100 for the denomenator. So, 4x25=100. Therefore, you will need to multiply the numerator by the same number (25 x 3) and that would = 75. Answer = 75/100 or 75%.
100
Find the Perimeter of a square with one side measuring 4cm.
What is 4+4+4+4 = 16cm
100
Charlie bought a bike that cost $150.00. He had a coupon for a 10% discount. How much money did he save?
150/10 = $15.00
100
40 + 30 * 7 = 490
(40 + 30 ) * 7
200
1/4 written as a decimal.
What is .25
200
Show the class how to convert 2/10 into a percentage.
What is .2 or 20%. You must multiply the numerator and the denomenator by a number that will = 100 for the denomenator. So, 10x10=100. Therefore, you will need to multiply the numerator by the same number (2 x 10) and that would = 20. Answer = 20/100 or 20%.
200
Find the Area of a square with a base of 5cm and width of 7cm.
What is Area = lw. So, A = 5 x 7 = 35cm.
200
Charlie bought a bike that cost $150.00. He had a coupon for a 10% discount. How much did he pay for the bike?
150 - 15 = 135.00
200
Add Parentheses to make these number sentences true: 2 * 3 + 10 = 26
2 * (3+10)
300
6/10 written as a decimal.
What is 0.6.
300
Show the class how to convert 4/4 into a percentage?
What is 100%
300
Find the Area and Perimeter of a rectangle with the following measurements: Length = 8in Width = 6in
Area = lw Area = 48in Perimeter = s1 +s2 +s3+s4 = Perimeter = 28in
300
A store is having a 25% off sale. If the bathing suit cost $60.00. How much off do you get?
15.00
300
Insert Parentheses to make the number sentence true: 12 = 6 * 6- 4
12 = 6 * (6-4)
400
2/8 written as a percent.
What is .25
400
Show the class how to convert 2/9 into a percentage?
You need to divide the numerator by the denomenator. So, 2 / 9 = .222 or 22.2%.
400
Find the Area and Perimeter of a rectangle with the following measurements: Length = 9in Width = 5in
A = lw A = 9x5 = 45in P=S1+S2+S3+S4 P = 28in
400
A store is having a 25% off sale. If the bathing suit cost $60.00. What is the new price of the sweater?
$60 - $15 = $45.00
400
Insert Parentheses to make the number sentence true: 24 - 5 * 2 = 38
(24 - 5) * 2 = 38
500
2/6 written as a decimal.
What is .333
500
Show the class how to simplify 25/75.
You must find a number you can divide 25 and 75 by. So, 25/25 = 1 and 75/25 = 3. Your answer is 1/3.
500
Find the Area and Perimeter of a Parallelogram with the following measurements: Length = 7in Width = 3in
A =lw A = 21in P=20in
500
Mrs. Prohm plans to buy a new TV. The model at Best Buy costs $200 and the model at Costco $220. In spring Best Buy put that TV on sale at 1/4 off the regular price. Costco offered a 30% off discount? At which store should Mrs. Prohm buy the TV? Why?
BB = 150.00 Costco = 66.00 off of 220 = 154
500
Insert Parentheses to make the number sentence true: 12 + 24 = 3 * 6 + 6
12 + 24 = 3 * (6 + 6)
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