Calculating Discounts and Sale Prices

Mrs. Bobby introduces lesson 28, focusing on calculating original price, sale price, discount amount, percent saved, and percent paid. She explains how to use the proportion method to solve problems involving discounts, using examples like sneakers and video games. The lesson concludes with a personal note from Mrs. Bobby.

What are the key concepts discussed in Lesson 28?

• Original price, sale price, amount of discount, percent saved, and percent paid

• Interest rates, loan amounts, and repayment periods

• Physics, chemistry, and biology

• Geometry, algebra, and calculus

If you save 20% on a purchase, what percent do you pay?

• 100%

• 20%

• 80%

• 50%

How do you calculate the original price if you know the sale price and percent paid?

• Multiply the sale price by the percent paid

• Divide the sale price by the percent paid and multiply by 100

• Add the sale price to the percent paid

• Subtract the percent paid from the sale price

In the sneakers problem, what is the discount if the original price is $80 and the percent saved is 25%?

• $15

• $20

• $25

• $10

What is the sale price of the sneakers if the original price is $80 and the discount is $20?

• $60

• $70

• $80

• $90

In the video game problem, what percent did you pay if you saved 10%?

• 20%

• 10%

• 100%

• 90%

How do you find the original price if the sale price is $54 and you paid 90%?

• Add $54 to 90

• Multiply $54 by 100 and divide by 90

• Divide $54 by 90 and multiply by 100

• Multiply $54 by 90

What is the original price of the video game if the sale price is $54 and the percent paid is 90%?

• $60

• $54

• $50

• $66

What is the discount amount if the original price is $60 and the sale price is $54?

• $6

• $5

• $7

• $4

What is the percent discount if the original price is $60 and the discount is $6?

• 20%

• 5%

• 10%

• 15%