Calculating Tips

Show your work for each problem.

1.
What is 10% of 50 dollars?
1. a)50 dollars
2. b)15 dollars
3. c)5 dollars
4. d)0.50 dollars
Answer: 5 dollars
10% of 50 is 5. Move the decimal one place left: 50.0 becomes 5.0.
2.
Your bill is 30 dollars. What is a 10% tip?
Answer: 3
dollars. Or simply: .
3.
What is 20% of 40 dollars?
1. a)2 dollars
2. b)20 dollars
3. c)8 dollars
4. d)4 dollars
Answer: 8 dollars
10% of 40 is 4. Double that: dollars.
4.
Your restaurant bill is 20 dollars. What is a 20% tip?
Answer: 4
10% of 20 is 2. For 20%, double it: dollars.
5.
Calculate a 15% tip on a 40 dollar bill.
Answer: 6
1. What is 10% of 40? 4
2. What is 5% of 40? (Half of 10%) 2
3. What is 15%? (10% + 5%) 6
6.
What is 15% of 60 dollars?
1. a)6 dollars
2. b)9 dollars
3. c)15 dollars
4. d)12 dollars
Answer: 9 dollars
10% of 60 = 6, 5% = 3. So 15% = 6 + 3 = 9 dollars.
7.
A pizza delivery costs 25 dollars. You want to tip 20%. How much is the tip?
Answer: 5
10% of 25 = 2.50. Double for 20%: dollars.
8.
Your dinner bill is 55 dollars. Calculate a 20% tip.
Answer: 11
1. What is 10% of 55? 5.5
2. What is 20%? (Double the 10%) 11
9.
Your bill is 80 dollars with a 15% tip. What is the total amount you pay?
1. a)88 dollars
2. b)95 dollars
3. c)90 dollars
4. d)92 dollars
Answer: 92 dollars
15% of 80 = 12. Total: dollars.
10.
A haircut costs 36 dollars. Calculate an 18% tip.
Answer: 6.48
1. What is 10% of 36? 3.6
2. What is 8% of 36? (10% - 2%) 2.88
3. What is 18%? (10% + 8%) 6.48
11.
Your bill is 45 dollars. What is a 15% tip?
Answer: 6.75
10% = 4.50, 5% = 2.25. So 15% = dollars.
12.
Your family dinner bill is 124 dollars. Calculate a 18% tip and the total.
Answer: 146.32
1. What is 10% of 124? 12.4
2. What is 20% of 124? 24.8
3. What is 2% of 124? 2.48
4. What is 18%? (20% - 2%) 22.32
5. What is the total? (Bill + Tip) 146.32
13.
Three friends split a 90 dollar bill equally. If each person tips 20%, how much does each person pay in total?
1. a)38 dollars
2. b)32 dollars
3. c)36 dollars
4. d)30 dollars
Answer: 36 dollars
Each share: . Tip per person: . Total: dollars.
14.
A massage costs 85 dollars. You want to tip 18%. What is the total you will pay?
Answer: 100.30
18% of 85 = 15.30. Total: dollars.
15.
Your bill is 72 dollars. Compare a 15% tip and a 20% tip. What is the difference?
Answer: 3.60
1. What is 10% of 72? 7.2
2. What is 15%? 10.8
3. What is 20%? 14.4
4. What is the difference? (20% - 15%) 3.6
16.
A taxi ride costs 32 dollars. With a 15% tip, which amount is closest to the total?
1. a)37 dollars
2. b)40 dollars
3. c)35 dollars
4. d)38 dollars
Answer: 37 dollars
15% of 32 = 4.80. Total: , closest to 37 dollars.
17.
Your coffee costs 8 dollars. Calculate a 20% tip.
Answer: 1.60
1. What is 10% of 8? 0.8
2. What is 20%? (Double the 10%) 1.6
18.
A spa treatment costs 110 dollars. What is a 20% tip?
Answer: 22
10% of 110 = 11. For 20%: dollars.