Number Sense
Number Sense
Number Sense
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CAHSEE on Target<br />
UC Davis, School/University Partnerships<br />
Student Workbook: <strong>Number</strong> <strong>Sense</strong> Strand<br />
B. One-Step Method<br />
A faster way to calculate the sales price is to make the original cost<br />
equal to 100%.<br />
Example: A merchant buys an item for $4.00 and marks it up by<br />
25%. How much does he charge for the item?<br />
Since the markup is 25%, the customer pays 125% of the original<br />
cost. Multiply the original cost by 125% (or 1.25):<br />
$4.00 ● 1.25 =<br />
(4 ● 1) + (4 ● .25) =<br />
4 + 1 = $5.00 The merchant charges $5.00 for the item.<br />
CAHSEE Alert! Some questions on the CAHSEE may ask for the<br />
dollar amount of the markup, not the final sales price.<br />
Example: Harry’s Bargain Basement has a 20% markup on all its<br />
goods. If the manufacturer price of irons is $16, how much extra<br />
does the customer pay for each iron?<br />
Solve: _____________________________________________<br />
Compare with this problem:<br />
Harry’s Bargain Basement has a 20% markup on all its goods. If the<br />
manufacturer price of irons is $16, how much does the customer pay<br />
for an iron?<br />
Solve: _____________________________________________<br />
Note: On the CAHSEE, be sure to read the question carefully to<br />
determine whether it is asking for the markup or final sales price.<br />
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