Exploring Tax, Tip, and Discount Calculations

The video tutorial covers the concepts of tax, tip, and discount calculations using percentage proportions. It begins with a detailed explanation of how to calculate sales tax on a book purchase, followed by a demonstration of calculating a tip at a restaurant. The tutorial concludes with a section on determining discounts and sale prices for items. Throughout the video, the teacher emphasizes the importance of understanding the part-to-total relationship and using proportions to solve these real-world math problems.

What is the first step in solving a word problem involving tax, tip, or discount?

• Underline the questions

• Circle the numbers

• Box the keywords

• Cross multiply

If a book costs $12 and the sales tax is 4.5%, what is the amount of tax?

• $1.54

• $1.20

• $0.54

• $0.45

What is the total cost of a book priced at $12 with a 4.5% sales tax?

• $12.45

• $13.00

• $12.50

• $12.54

If a restaurant bill is $45.56 and you need to tip 20%, how much should you leave for the tip?

• $9.11

• $9.50

• $10.00

• $11.00

What is the total cost of a meal if the bill is $45.56 and the tip is $9.11?

• $55.67

• $54.67

• $54.00

• $55.00

What is the discount on a $25 item with a 30% discount?

• $6.50

• $5.00

• $7.50

• $8.00

How do you find the sale price of an item after calculating the discount?

• Subtract the discount from the original price

• Add the discount to the original price

• Multiply the discount by the original price

• Divide the original price by the discount

What is the sale price of a $25 item with a $7.50 discount?

• $17.50

• $18.50

• $20.50

• $19.50

Which of the following is true about tax and tip calculations?

• Tax subtracts and tip adds to the original price

• They both add to the original price

• Tax adds and tip subtracts from the original price

• They both subtract from the original price

What should you be careful about when solving problems involving tax, tip, and discount?

• The units of measurement

• The type of problem being asked

• The order of operations

• The method of calculation