Percentages, Estimation, Sales Tax, & Tips Review
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Percentages, Estimation, & Sales Tax and Tips Review
Find the result using any method you like: (YOU MUST SHOW YOUR WORK!)
a. 13% of 40 b. 7% of 123
c. 78% of 210 d. 125% of 62
A shirt is on sale for 15% off the original price of $37. Estimate the sale price of the shirt. Then, find the actual price.
Estimate how much you would pay for a CD that usually sells for $19.50 if it is on sale for 30% off. Then, find the actual price.
Estimate the value: 20% of 110.
Estimate the value: 8% of 500.
Suzie and Margo went to dinner at Applebee’s. Suzie ordered the Cowboy Burger for $7.49 and Margo ordered the Southern Fried Chicken Salad for $8.99. Both Suzie and Margo ordered a Mountain Dew to drink for $1.99 each. What was their total bill, including Michigan sales tax of 6% and a tip of 15%?
Kenneth and Bobby decided to get a late night snack and save money by shopping from the McDonald’s dollar menu. Kenneth ordered two cheeseburgers for $1.19 each, large fries for $0.99, and a large drink for $0.99. Bobby ordered the same. What was their total bill including a sales tax of 6%?
Savanah and Alyson stopped at the local coney island restaurant after school. Savanah ordered the Chef Salad for $7.99 and water to drink (free). Alyson ordered the coney dog platter for $6.99 and a rootbeer to drink for $1.99. Their waiter was very attentive and kept their glasses full. They decide to leave him a larger tip of 20%. What was the cost of their total bill including sales tax of 6% and tip?
David decided to spend his savings on a new Wii. The Wii cost $199. He also decided to buy the World Tour Guitar Hero game to go with it for $79.99. What was David’s total cost, including sales tax of 6%?
Answer Key
1a. 5.2
1b. 8.61
1c. 163.8
1d. 77.5
2. Answers may vary. (approximately $30-$34) Exact: $31.45
3. Answers may vary. (approximately $14) Exact: $13.65
4. Answers may vary (approximately 21)
5. Answers may vary (approximately 50)
6. Food bill: $20.46
State tax on food bill: $1.23
15% tip (not including sales tax): $3.07
Total food bill (calculating tip on price of food only): $24.76
7. 4*$0.99 = 3.96
4*$1.19 = $4.76
$8.72 * 0.06 = $0.5232
Total bill: $9.24
8. Food bill: $16.97
Tax: $1.0182
Tip (calculated on food portion only of bill): $3.394
Total bill: ($16.97 + 1.0182 + 3.394) = $21.38
9. Cost for Wii and game: $278.99
Michigan sales tax: $16.7394
Total cost: $295.7294
This assessment addresses the following state objectives:
N.FL.06.12 Calculate part of a number given the percentage and the number.
Questions 1a-1d
N.FL.06.14 For applied situations, estimate the answers to calculations involving operations
with rational numbers.
Questions 2-5
N.MR.06.13 Solve contextual problems involving percentages such as sales taxes and tips.*
Questions 6-9
Presentation Transcript
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