6th Grade Math Textbook, Fundamentals

(Marvins-Underground-K-12) #1

  • Analyze your answers. Do they make sense?
    Estimate amount of discount and new price.
    20% of $30 $6
    $30 $6 $24.
    The discounted price is reasonable.


Estimate the total price of the items, before tax.
$20 $10 $10 $40
Estimate the tax and add to total.
10% of $40 $4
$40 $4 $44
The total cost is reasonable.

Sample Test Item
April went to a shopping mall. She spent $28.95 on a jacket, $12.75 on
a belt, and $6.59 on socks, before tax. The tax rate was 7.5%.
Part A
April had a coupon for 20% off the price
of the jacket. What was the discounted price
of the jacket, before tax?

Part B
What was the total cost of April’s purchases,
including the coupon and tax?
Show all your work.

Chapter 7 205

Test Prep: Extended-Response Questions


Strategy: Answer All Parts


Extended-response questions often contain more than one part and may
require several steps to complete each part. Show or describe your steps
to help to demonstrate your understanding.


Test-Taking Tips



  • Reread the item.

  • Use the Test-Prep strategy.

  • Apply appropriate rules,
    definitions, properties, or
    strategies.

  • Analyze your answers.


Check your work. Review your notes.
Make sure you have completed all parts of the item.


Read the whole test item carefully.



  • Reread the test item. Use context clues to help
    determine the meaning of any unfamiliar words.

  • Determine the steps needed to solve each part.


1.Find the amount of discount, then find the
discounted price.
2.Find the total cost of the items before tax, then
find the tax and add it to the total.

Solve the problem.



  • Apply appropriate rules, definitions and formulas.


To solve Part A, find the amount of discount.

20% • $28.95 0.20 • 28.95 $5.79
Subtract the discount from the original price.
$28.95 $5.79 $23.16
Answer:The discounted price of the jacket
was $23.16.

To solve Part B, add the prices before tax.
$23.16 $12.75 $6.59 $42.50
Then find the amount of tax.

7.5% • $42.50 0.075 • 42.50 $3.1875 $3.19
Add the tax to the total of the items purchased.
$42.50 $3.19 $45.69.
Answer:The total cost was $45.69.

Think
Discount Rate of Discount • List Price
Think
Sales Tax Rate of Tax • Marked Price
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