Calculating Discounts and Sales Prices

This video tutorial from Moomoomath and Science explains a shortcut for calculating discounted and original prices. It covers converting percentage discounts to decimals and provides examples of calculating sales prices for a shirt and a book, as well as determining the original price from a discounted price. The video concludes with a call to subscribe for more math and science content.

What is the first step in finding the discounted price using the shortcut method?

• Subtract the discount percentage from 1 and convert it to a decimal.

• Divide the original price by the discount percentage.

• Multiply the original price by the discount percentage.

• Add the discount percentage to the original price.

Which of the following is NOT a step in calculating the sales price using the shortcut method?

• Add the discount percentage to the original price.

• Multiply the original price by the converted decimal.

• Convert the discount percentage to a decimal.

• Subtract the discount percentage from 1.

How do you convert a 25% discount to a decimal?

• 25.0

• 0.025

• 2.5

• 0.25

If a shirt originally costs $20 and is on sale for 15% off, what is the discounted price?

• $15

• $18

• $16

• $17

What is the sales price of a book originally priced at $35 with a 25% discount?

• $30.00

• $28.75

• $25.00

• $26.25

How do you find the original price if the sales price is $40 with a 20% discount?

• Divide $40 by 0.8

• Subtract 20% from $40

• Multiply $40 by 0.8

• Add 20% to $40

What is the original price of an item if the sales price is $40 and the discount is 20%?

• $55

• $45

• $50

• $48

What is the result of multiplying the original price by the decimal form of the discount?

• The original price

• The sales price

• The discount amount

• The tax amount