TOPIC

1. TOPIC Word Problems (Calculating a restaurant bill)

2. TOPIC Example QUESTION: Four friends go out for a traditional American meal. Three of them get a hamburger and fries and one of them gets a chicken sandwich and onion rings. How much did the four friends spend before tax and gratuity? Menu $8.95 $3.89 $6.97 $8.99 $4.56 $1.25 $1.50 Hamburger Fries Hot dog Chicken Sand. Onion Rings Coke Ice Cream Gratuity : 15% Sales Tax : 8%

3. TOPIC No Calculators No Calculators!!!!!! If I see a calculator, it is minus 1 point for your team.

4. REVIEW Money Phrases Today, we will be using basic math(addition, multiplication, and division) in Word Problems. We will need to quickly review a few things. $8.67 eight dollars and sixty seven cents How do you say the following numbers? 1. $0.14 2. $10.24 3. $4.99 4. $7.23 5. $1.99

5. TOPIC Customs – US/China U.S. Restaurant It is common for Americans to share the bill evenly or pay for what they ate. On your birthday, everybody pays for you. There is tax and tip included on every bill. Based on the cost of the meal, you must add tax and tip to your bill. Chinese Restaurant It is traditional for the host to pay the bill for everybody. On your birthday, you pay for everybody. There is no tax or tip. The amount you see is the amount you pay.

6. LESSON Tax and Tip What is tax? Tax(or Sales Tax) is a percentage of the Sub-Total of a bill. Menu $8.95 $3.89 $6.97 $8.99 $4.56 $1.25 $1.50 Hamburger Fries Hot dog Chicken Sand. Onion Rings Coke Ice Cream What is tip? Tip(or Gratuity) is a percentage of the Sub Total and Tax and it is given to your waiter. Gratuity : 15% Sales Tax : 8% 1 1 Sub Tax Grat Total Hotdog Fries $8.95 $3.89 $12.84 $1.03 $2.08 $15.95 Item total 8% of the Subtotal 15% of the Subtotal + Tax Subtotal + Tax + Gratuity

7. LESSON Word Problems Word Problems have lots of information. It’s important to choose the most important points in order to solve the problem. • For every question, ask yourself: • What information is important? • What is the question asking for?

8. LESSON Question #1 – Difficulty(Easy) QUESTION: Four friends go out for a traditional American meal. Three of them get a hamburger and fries and one of them gets a chicken sandwich and onion rings. How much did the four friends spend before tax and gratuity? Menu $8.95 $3.89 $6.97 $8.99 $4.56 $1.25 $1.50 Hamburger Fries Hot dog Chicken Sand. Onion Rings Coke Ice Cream Gratuity : 15% Sales Tax : 8% • BEFORE YOU ANSWER: • What is information is important? • What is the question asking for?

9. LESSON Question #1 – Difficulty(Easy) Important Info QUESTION: Four friends go out for a traditional American meal. Three of them get a hamburger and fries and one of them gets a chicken sandwich and onion rings. How much did the four friends spend before tax and gratuity? Menu $8.95 $3.89 $6.97 $8.99 $4.56 $1.25 $1.50 Hamburger Fries Hot dog Chicken Sand. Onion Rings Coke Ice Cream Question Ham. Fries Ham. Fries Ham. Fries Chick. Onion Sub $8.95 $3.89 $8.95 $3.89 $8.95 $3.89 $8.99 + $4.56 $52.07 CALCULATIONS: Gratuity : 15% Sales Tax : 8% 3 3 1 1 Sub Hamburger Fries Chicken Sand. Onion Rings $26.85 $11.67 $8.99 $4.56 $52.07

10. LESSON Question #2 QUESTION: Four friends go out for a traditional American meal. Three of them get a hamburger and fries and one of them gets a chicken sandwich and onion rings. How much did the four friends spend after tax and gratuity? Menu $8.95 $3.89 $6.97 $8.99 $4.56 $1.25 $1.50 Hamburger Fries Hot dog Chicken Sand. Onion Rings Coke Ice Cream Gratuity : 15% Sales Tax : 8%

11. LESSON Question #2 – Difficulty(Easy) QUESTION: Four friends go out for a traditional American meal. Three of them get a hamburger and fries and one of them gets a chicken sandwich and onion rings. How much did the four friends spend after tax and gratuity? Menu $8.95 $3.89 $6.97 $8.99 $4.56 $1.25 $1.50 Hamburger Fries Hot dog Chicken Sand. Onion Rings Coke Ice Cream CALCULATIONS: Sub Total plus Tax plus Gratuity equals $52.07 $4.17 $8.44 $64.68 Gratuity : 15% Sales Tax : 8% 3 3 1 1 Sub Tax Grat Total Hamburger Fries Chicken Sand. Onion Rings $26.85 $11.67 $8.99 $4.56 $52.07 $4.17 $8.44 $64.68 Sub Total Tax Gratuity Total

12. LESSON Question #3 – Difficulty(Easy) QUESTION: It is Donna’s birthday and her friends William, Jack, Lisa, and Simon have decided to take her out for dinner. The total bill for the meal is $87.64 . If Donna’s friends pay for her meal and they split the bill evenly, how much must each friend pay? Menu $8.95 $3.89 $6.97 $8.99 $4.56 $1.25 $1.50 Hamburger Fries Hot dog Chicken Sand. Onion Rings Coke Ice Cream Gratuity : 15% Sales Tax : 8%

13. LESSON Question #3 – Difficulty(Easy) QUESTION: It is Donna’s birthday and her friends William, Jack, Lisa, and Simon have decided to take her out for dinner. The total bill for the meal is $87.64 . If Donna’s friends pay for her meal and they split the bill evenly, how much must each friend pay? Menu $8.95 $3.89 $6.97 $8.99 $4.56 $1.25 $1.50 Hamburger Fries Hot dog Chicken Sand. Onion Rings Coke Ice Cream CALCULATIONS: Gratuity : 15% Sales Tax : 8% $87.64 ÷ 4 $21.91 Total $87.64 divided by 4 equals $21.91

14. LESSON Question #4 – Difficulty(Medium) QUESTION: A group of 8 friends went to celebrate Jessie‘s birthday and they decided to split the bill evenly but one of the friends forgot to bring money. If each person originally had to pay $19.60, how much does each person now have to pay?

15. LESSON Question #4 QUESTION: A group of 8 friends went to celebrate Jessie‘s birthday and they decided to split the bill evenly but one of the friends forgot to bring money. If each person originally had to pay $19.60, how much does each person now have to pay? CALCULATIONS: $19.60 x 8 $156.80 $156.80 ÷ 7 $22.40

16. LESSON Question #5 QUESTION: James went to eat at a local restaurant and paid a total of $17.44 for his meal. There was a sales tax of 9% and no tip was included. If the sales tax was increased to 10%, how much more would James have to pay?

17. LESSON Question #5 – Difficulty(High) QUESTION: James went to eat at a local restaurant and paid a total of $17.44 for his meal. There was a sales tax of 9% and no tip was included. If the sales tax was increased to 10%, how much more would James have to pay? CALCULATIONS: Sub Tax Grat Total ? ? 0.00 $17.44 Sub Tax Grat Total x (.09)x 0.00 $17.44 x + (.09)x = 17.44 1.09x = 17.44 x = 16 Sub Tax Grat Total 16.00 (.10)x 0.00 $17.60 $17.60 – $17.44 = $0.16

18. GAME It’s my birthday! Your team is going to dinner to celebrate the birthday of one of your team members. Fortunately, he has decided to pay for everybody but unfortunately, the restaurant’s cash(calculator) is broken. So, the birthday student must add all the meals together, calculate the sales tax, and add a tip. 1 Your team will choose one person to be the birthday student. 2 The birthday student will stand at the front of the room. From their seats, each team member must yell how much their meal cost. Every student must stay in their seat(except the birthday student) and they must speak slowly and clearly. 3 The birthday student will add all the meals together, add the sales tax, and add a tip. The first team to complete the exercise correctly, will earn 5 points for their team.

19. GAME Diagram Blackboard Birthday student End 12 11 10 9 8 7 Guests 6 5 4 3 2 1 Team Yellow Team Red Team Green Team Blue Start

20. GAME On the board The birthday student must calculate the correct bill amount. It’s my birthday! Birthday student Tip: 10% Tax: 9% 8.95 14.85 21.59 7.56 7.26 60.21 60.21 x .09 5.42 60.21 + 5.42 65.63 65.63 x .10 6.56 65.63 + 6.56 $ 72.19

21. GAME Tips To be successful, follow some of these tips. • Say the number quickly and clearly. If the birthday student does not understand, repeat the number slowly. It’s better to say the number slowly and correctly than faster and incorrectly. • If the math is not correct, the birthday student probably misunderstood a number incorrectly. The birthday student should ask the other students on the team to repeat. • If it is not your turn, be quiet! It can be difficult to hear when too many people are talking.

22. GAME Example EXAMPLE