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Cogito

Grade 7 Math · Chapter 3 · Lesson 3

Practice Worksheet

Discounts and Sale Prices

Taking a percent off.

10 problems · about 18 minutes · 7.RP.A.3

NameDate

Figure — use these to answer the problems

The part taken off, and the part that is left.
taken off and left to pay
the original
Taken off15
What is left35
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

3 problems

  1. From “Tax, Tips, and Markup”

    £90 with 20% added. Total in pounds?

    Answer

  2. From “Percent Increase and Decrease”

    A 120 pound item falls 25%. New price?

    Answer

  3. From “Unit Rates with Fractions”

    ⅖ mile in ⅕ hour. Miles per hour?

    Answer

Warm Up

Straightforward practice. Get the method working first.

3 problems

  1. £70 with 20% off. Pay in pounds?

    Answer

  2. £40 with 10% off. Pay in pounds?

    Answer

  3. £60 with 50% off. Pay in pounds?

    Answer

Build It Up

The same ideas with more to keep track of.

2 problems

  1. What multiplier takes 40% off?

    Answer

  2. £100, 10% off then 10% off. Pay in pounds?

    Answer

Stretch Yourself

Mixed problems. Work out what kind of question it is before you start.

2 problems

  1. The Sale

    £80 with 25% off. What do you pay, in pounds?

    Answer

  2. The Second Discount

    £200, 50% off then 50% off again. What do you pay, in pounds?

    Answer