ISEE Lower Level Math : Operations

Study concepts, example questions & explanations for ISEE Lower Level Math

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Example Questions

Example Question #24 : How To Subtract

Solve for 



Possible Answers:

Correct answer:

Explanation:

To solve for , first get all of the  by themselves on one side of the equal symbol: 



Then combine the like terms: 



Thus, the final solution is: 



Example Question #25 : How To Subtract

Simplify: 

Possible Answers:

Correct answer:

Explanation:

To evaluate this problem, use the distributive property: 



Alternatively you could have evaluated the expression within the parentheses first and then multiplied by :



Example Question #26 : How To Subtract

Solve for 

Possible Answers:

Correct answer:

Explanation:

To correctly solve for , organize the like terms on either side of the equal symbol: 





Thus, the final solution is:



Example Question #171 : Operations

Solve for 

Possible Answers:

Correct answer:

Explanation:

To evaluate this expression for , first organize the like terms on separate sides of the equal symbol: 



Thus, the final solution is:



Example Question #26 : How To Subtract

Juan went to the store with . Juan spent  on toothpaste,  on juice and  on meats. How much money did Juan leave the store with? 

Possible Answers:

Correct answer:

Explanation:

Firstly, find the total amount of money that Juan spent at the store: 



Now, find the difference between the amount of money Juan entered the store with and the amount that he spent: 

Example Question #171 : Operations

Evaluate: 

Possible Answers:

Correct answer:

Explanation:

To correctly evaluate this problem, apply the standard orders of operations rules. Therefore, you must first divide: 



Then find the sum of: 

Example Question #172 : Operations

Simplify:

Possible Answers:

Correct answer:

Explanation:

To solve this problem first apply the distributive property then combine the like terms:

Example Question #172 : Operations

Cara had  prior to going to the store. After Cara went shopping she only had  left over. How much money did Cara spend at the store?  

Possible Answers:

Correct answer:

Explanation:

To determine how much money Cara spent at the store, find the difference between the amount of money she started with and the amount of money she had after shopping. 

Thus, the solution is: 

Example Question #151 : Basic Arithmetic

If Betty has  in her wallet and buys a sandwich that costs , how much money will she have left in her wallet, in dollars?

Possible Answers:

Correct answer:

Explanation:

If Betty has  in her wallet and buys a sandwich that costs , the best way to determine how much money is left in her wallet is to subtract  from

An easy way to do this is to first subtract  and . This results in: 

Next,  should be subtracted from . This results in: 

Therefore, Betty will have  left in her wallet. 

Example Question #173 : Operations

Possible Answers:

Correct answer:

Explanation:

First you subtract the values in the ones place, 

.  

Then you subtract the tens values, 

.  

Put those two together and you get your answer of .

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