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

Markups

What the store adds on

Finn reads this

A store buys things for one price and sells them for more. The amount it adds on is the markup.

A hoodie, marked up 45 percent

Finn reads this

A store buys a hoodie for $20 and marks it up 45 percent. The markup is 45 percent of $20, which is $9, so the hoodie sells for $29. One step: 20 times 1.45 is $29.

markup: $20 × 0.45 = $9selling price: $20 + $9 = $29 = $20 × 1.45

Compare it with tax: both add a percent on top, so both multiply by more than 1. Tax goes to the government; a markup stays with the store.

ElleMath-speak

The selling price is the cost multiplied by 1 plus the markup rate.

FinnPlain English

The store adds 45 percent to what it paid. Multiply by 1.45.

Up or down? Pick the multiplier

Finn reads this

Every change in this unit is one multiplier. Adding on: 1 plus the rate. Taking off: 1 minus the rate. Times a number bigger than 1 makes it bigger. Times a number smaller than 1 makes it smaller. Times 1 keeps it the same.

Let me try a few

NC standards: NC.7.RP.3.

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