ISEE Middle Level Math : Numbers and Operations
Study concepts, example questions & explanations for ISEE Middle Level Math
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Example Questions
Example Question #72 : Problem Solving
Jerry buys groceries that cost $43.23 before tax. The tax on groceries in his locality is 5.5%. He hands the cashier a $100 bill. What will he get back in change?
The tax on $43.23 worth of groceries is 5.5% of that, which is 0.055 multiplied by that:
Add that to the price:
And subtract that from $100:
Example Question #196 : Percentage
What is 40% of 
Set up the percent proportion, where 
Solve for 
Example Question #15 : Percentages
At the store where Harry works, a hat he wants to buy sells for $72.00. He gets an employee discount of 20%, and he wants to hold out for two weeks, when the hat is marked down 15%. How much will he be able to buy the hat for then?
A 20% employee discount means that Harry gets to buy merchandise for 80% of the purchase price. A 15% markdown means that the hat will sell for 85% of its normal price. Therefore, Harry will pay 80% of 85% of $72 for the hat, or:
Example Question #871 : Numbers And Operations
A bicycle Carly wants to buy costs $250 in her hometown in Tennessee, where she would pay no sales tax. Just across the border in Kentucky, she can buy the same bicycle for $225 in a store, but the sales tax is 8%. How much would Carly save by buying the bicycle in Kentucky?
In the Kentucky store, Carly would pay $225, plus 8% of that amount, in tax; this is:
She would save
Example Question #872 : Numbers And Operations
$12,000 is deposited into a savings account that draws 6% simple interest per year. If no money is withdrawn during the first five years, how much money is in the account at the end of the fifth year?
We can use the simple interest formula 
The savings account will have 
Example Question #1 : Use Proportional Relationships To Solve Multistep Ratio And Percent Problems: Ccss.Math.Content.7.Rp.A.3
How much would a 
First, find 
Then, subtract this value from the whole:
Example Question #2 : Use Proportional Relationships To Solve Multistep Ratio And Percent Problems: Ccss.Math.Content.7.Rp.A.3
How much would a 
First, find 
Then, subtract this value from the whole:
Example Question #873 : Numbers And Operations
Solve for 
Use a proportion to solve the problem.
Cross multiply
Example Question #874 : Numbers And Operations
To get on the ballot for student body president, a student must turn in a petition with the signatures of 4% of the students. If there are 3,268 students, how many signatures must a student get to be on that ballot? (Round to the nearest whole person.)
4% of 3,268 can be calculated by multiplying 3,268 by 0.04, the decimal equivalent of 4%:
Multiply 3,268 by 4, then move the decimal point two places to the right:
so
Rounded to the nearest whole number - 131 signatures.
Example Question #875 : Numbers And Operations
Sally painted 11 pictures on Monday, 7 pictures on Wednesday, and 3 pictures on Friday. On average, how many pictures did Sally paint on those 3 days?
To solve, first find the total number of pictures painted:
Then, divide the total number of pictures by the total number of days to find the average.
Sally painted an average of 7 pictures per day.
All ISEE Middle Level Math Resources
