ISEE Middle Level Math : ISEE Middle Level (grades 7-8) Mathematics Achievement
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Example Questions
Example Question #851 : Numbers And Operations
10 percent of a cake weights 20 ounces. The entire cake is cut into 8 pieces. How many ounces does each piece weigh?
If 10 percent of the cake weights 20 ounces, then the entire cake will weigh 200 ounces, because 10 times 20 is 200.
If the cake has 8 slices, then each slice will weigh (in ounces) 200 divided by 8. 200 divided by 8 is 25; therefore, 25 ounces is the correct answer.
Example Question #852 : Numbers And Operations
There are 12 sopranos in the Red Street Choir. If sopranos are 40% of the choir, how many total members make up the Red Street Choir?
When given a part, you can use a percentage to determine the whole by converting the percentage to a decimal and dividing the part by that number.
Example Question #855 : Numbers And Operations
If you have 
To find a part of a whole with a percentage, you multiply the whole by the percent.
To find the opposite, you divide the part by the percent so it would be 
This is equal to
Example Question #13 : How To Find The Whole From The Part With Percentage
There are 8 pieces of pizza. If Justin at 25% of the pizza, how many pieces did he have?
25% is equivalent to the fraction
meaning that if Justin ate 25% of the pizza, he ate 2 of the 8 pieces.
Example Question #4 : Percentages
If 
Solve for 
Example Question #853 : Numbers And Operations
Which is larger?
a. 10% of 90
b. 5% of 160
c. 20% of 50
d. 30% of 40
First find the percentage amount for each choice by multiplying the number by the percentage amount
a.
b.
c.
d.
Then compare the amounts to find the largest.
The answer is (d) 12.
Example Question #71 : Arithmetic
A laptop computer is on sale for 40% less than the original price. If the original price is $345.00, what is the laptop's current sale price?
First, multiply the original price by the sale percentage:
Then, subtract that amount from the original price to get the sale price:
The laptop's current sale price is
Example Question #72 : Arithmetic
Helen wants to buy a dress for a party. It is on sale for 37% off. How much does the dress currently costs, if its original price was $45.00?
First, multiply 45 by 0.37:
Then, subtract that amount from 45.00 to find the sale price:
Answer: The dress' sale price is $28.35.
Example Question #1 : How To Find The Part From The Whole With Percentage
A restaurant is having a sale and lowering their prices by 20%. If an average meal for two normally costs $62.00, what will it costs under the current sale?
Multiply:
Then, subtract that amount from the original price:
Answer: $49.60
Example Question #863 : Numbers And Operations
Candy bought a sweater and a beanie on sale for 20% off. If the sweater cost $
$
$
$
$
$
$
In order to find how much money Candy spent, we must first figure out the cost of the merchandise before the discount. We do this by adding the prices together.
Next we must find 20% of $57.00.
Since 20% is the percentage Candy saved, we must subtract $11.40 from the original price.
So Candy spent $45.60.
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All ISEE Middle Level Math Resources
