money
 : Discounts
Approach: Independent
Resources: None

Questions / instructions:
A shop is selling things at bargain prices. Write down how much is taken off the old price.
Then write down the new bargain price.

Example:

10% off
$2

Savings:
New Price
20¢
$1.80
 
  % responses
y8

1. 10% off
     $5 - Teacup  

Savings:
New Price
50¢
correct, given above
57
85

2. 10% off
     $2.50 - Softball

Savings:
New Price
25¢
correct, given above
48
83

3. 50% off
    $25 - Softball Glove

Savings:
New Price
$12.50
correct, given above
58
74

4. 50% off
     $199
- Camera

Savings:
New Price
$99.50
correct, given above
34
50
5. 25% off
    $399 - Television
Savings:
New Price
$99.75
correct, given above
13
37
6. 12.5% off
    $40
- Rugby Ball
Savings:
New Price
$5.00
correct, given above
18
40
Commentary:
Year 8 students struggled to calculate the value of discounts, averaging just 38 percent correct. They were more successful at subtracting their calculated discount from the list price, averaging 62 percent correct.


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