Math 7 · Unit 2, Lesson 4: Sales and Markups · Tile 1 of 3

Discounts: Pay What Is Left

30 percent off means you pay 70 percent

Finn reads this

Sales take money off. Stores add some on. Today you figure out which and how much.

Shoes, 30 percent off

Finn reads this

Shoes cost $60 and are 30 percent off. The discount is the amount taken off: 30 percent of $60 is $18. So you pay $60 minus $18, which is $42. A markdown is another word for a discount.

discount: $60 × 0.30 = $18sale price: $60 − $18 = $42

The one-step way

Finn reads this

If 30 percent is taken off, you pay the 70 percent that is left. So multiply by 0.70: 60 times 0.70 is $42 in one step. Tax multiplied by more than 1 and made the price bigger. A discount multiplies by less than 1 and makes it smaller.

100% − 30% = 70% = 0.70sale price: $60 × 0.70 = $42

ElleMath-speak

The sale price is the original price multiplied by 1 minus the discount rate.

FinnPlain English

If 30 percent comes off, you pay the 70 percent that is left. Multiply by 0.70.

Let me try a few

NC standards: NC.7.RP.3.

Where to go next

Let me try a few5 problems on discounts: Pay What Is Left. Next: Tile 2, MarkupsWhat the store adds on All tilesAll 3 parts of this lesson. Tell us what you thought about this tileA few quick questions about just this tile. It takes a few minutes, and opens in a new tab so you keep your place.