Show:
Expanded Notation
Fractions as Decimals and Percents
Multiplying and Dividing with Decimals
Discounts
Fractions of Sets and Percents of Sets
100
(20 + 40) x 4 =
240
100
Write the fraction as a decimal and a percent 7 / 100
.07 and 7%
100
The multiplication for this problem has been done correctly, but the decimal point is missing in the answer. Write a number model to show how you estimated the answer. Then write the answer with the correct placement of the decimal point. 56 x 4.2 = 2 3 5 2
Estimation: 50 x 4 = 200 Correct answer: 235.2
100
Jan bought a sweater that costs $150. She had a coupon for a 10% discount. How much did she save with the discount?
$15
100
1/3 of 90
30
200
(30 - 3) / 3 =
9
200
DOUBLE JEOPARDY!! Lisa went to the store to buy some frozen pizzas. There were 75 pizzas in the freezer. 2/5 of the pizzas are plain cheese pizzas. 0.40 of the pizzas are plain cheese pizzas. That is 40% of the pizzas. How many of the pizzas are plain cheese?
30 pizzas are plain cheese pizzas
200
The multiplication for this problem has been done correctly, but the decimal point is missing in the answer. Write a number model to show how you estimated the answer. Then write the answer with the correct placement of the decimal point. 91.3 / 4 = 2 2 8 2 5
Estimation: 100 / 4 = 25 Correct answer: 22.825
200
DOUBLE JEOPARDY!!! Write the formula for how you find the area of a triangle.
Base x Height / 2
200
2/5 of 20
8
300
Insert parenthesis to make the number sentence true. 30 - 15 / 5 = 3
(30 - 15) / 5 = 3
300
Write the fraction as a decimal and a percent 3/4
0.75 and 75%
300
DOUBLE JEOPARDY!!! An airline offers a 25% discount on regular airfare for tickets purchased at least 1 month in advance. What would the sale price be for a flight that regularly costs $240?
A 25% discount of $240 would be $60. $240 - $60 = $180
300
Patrick wants to buy model airplane kit that regularly costs $200. He has a coupon for 20% off. How much money did he save with his coupon?
$40
300
3/4 of 24
18
400
Insert parenthesis to make the number sentence true. 6 = 46 - 17 + 23
6 = 46 - (17 + 23)
400
Write the fraction as a decimal and a percent 3/5
0.60 and 60%
400
Multiply. Remember, finding the estimated answer will help out figure out where to place the decimal point in your final answer. 12.2 x 3 =
36.6
400
Patrick wants to buy model airplane kit that regularly costs $200. He has a coupon for 20% off. How much did he pay for his kit?
$160
400
10% of 50
5
500
Insert parenthesis to make the number sentence true. 10 + 20 x 9 = 270
(10 + 20) x 9 = 270
500
Write the fraction as a decimal and a percent 13/25
0.52 or 52%
500
Multiply. Remember, finding the estimated answer will help out figure out where to place the decimal point in your final answer. 3.7 x 11 =
40.7
500
Anton wants to buy a flat screen TV that regularly costs $200 at Best Buy and regularly $220 at Target. Best Buy put the television on sale with a savings of 1/4 off the regular price. Target offered a 30% discount on all electronics. Where should Anton buy the TV if he wants to get the best price? Target or Best Buy?
Best Buy. At Best Buy, the TV would only cost $150. 1/4 of $200 = $50. $200 - $50 = $150. At Target, the TV would cost $154. 30% of $220 = $66. $220 - $66 = $154.
500
30% of 50
15