ISEE Lower Level Math : Operations

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

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Example Questions

Example Question #71 : Operations

Find the product of:

Possible Answers:

Correct answer:

Explanation:

When multiplying a negative factor times a positive factor times and then multiplying that product times a negative factor, the final product will always be positive. 

Consider the solution using partial products: 

Example Question #72 : Operations

Find the product of:

Possible Answers:

Correct answer:

Explanation:

When multiplying a negative times a negatives times a negative, the resulting product must be negative. 

Thus, the solution is:


 

Example Question #73 : Operations

Find the product of:

Possible Answers:

Correct answer:

Explanation:

When multiplying two positive factors with one negative factor, the resulting product must be negative. 

The solution is:

Example Question #231 : Numbers And Operations

Kendra has  bags of candy. Each bag has  pieces of candy. Half of the candy is chocolate. How many pieces of chocolate does Kendra have in all? 

Possible Answers:

Correct answer:

Explanation:

Half of every bag of candy must be chocolate. All  bags have  pieces of candy. Thus,  pieces must be chocolate in every bag. 

Kendra's total amount of chocolate is:



An alternative solution is to find the total amount of candy that Kendra has and then divide that amount in half:



Example Question #75 : Operations

John and Jose both enjoy writing lines of programming code. John has written  lines of code. If Jose has written  times as many lines of code as John, how many lines of code has Jose written? 

Possible Answers:

Correct answer:

Explanation:

Since Jose has written  times as many lines of code as John, multiply the total amount of code that John has written by .

The solution is:

Example Question #71 : Operations

Find the product of:

Possible Answers:

Correct answer:

Explanation:

To solve this problem, first evaluate . Then multiply that quantity by 

The solution is:



Example Question #71 : Operations

Alejandra had  friends come to her party. Before the party, she made enough cupcakes for each of her friends to have  cupcakes. How many cupcakes did Alejandra make?

Possible Answers:

Correct answer:

Explanation:

Alejandra made enough cupcakes for each of her  friends to have  cupcakes. She must have made  cupcakes because 

Example Question #243 : Isee Lower Level (Grades 5 6) Mathematics Achievement

Find the product of:

Possible Answers:

Correct answer:

Explanation:

To solve this problem, first evaluate . Then multiply that quantity by 

The solution is:



Example Question #244 : Isee Lower Level (Grades 5 6) Mathematics Achievement

Find the product of:

Possible Answers:

Correct answer:

Explanation:

To solve this problem, first evaluate . Then multiply that quantity by 

The solution is:



Example Question #245 : Isee Lower Level (Grades 5 6) Mathematics Achievement

Possible Answers:

 

Correct answer:

Explanation:

First set up the multiplication vertically.

Now multiply the 5 in 45 by each value in 3473.

       

         

Remember to carry the tens unit when the product is greater than or equal to ten.

   

    

             

           

         

 

    

From here, multiply the 4 in 45 by each value in 3473.

  

   

           

         

       

   

Now add the value two values that were found by multiplying the 5 and the 4 by 3473.

     

      

The correct answer is .

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