ISEE Lower Level Math : Operations

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

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Example Questions

Example Question #213 : Isee Lower Level (Grades 5 6) Mathematics Achievement

Which of the following is a multiple of 11?

Possible Answers:

Correct answer:

Explanation:

A multiple is the product of the first number and another whole number. Given that 121 is the product of 11 (the first number) and 11, it is a multiple of 11. Therefore, 121 is the correct answer. 

Example Question #214 : Isee Lower Level (Grades 5 6) Mathematics Achievement

If 2 marshmallows are required to make 1 s'mores sandwich, how many marshmallows will be required for 6 campers to make 3 s'mores sandwiches each?

Possible Answers:

Correct answer:

Explanation:

If 6 campers make 3 s'mores sandwiches each, they will make 18 s'mores sandwiches because .

Given that each sandwich requires 2 marshmallows, 36 marshmallows will be required to make the 18 sandwiches, because .

Example Question #215 : Isee Lower Level (Grades 5 6) Mathematics Achievement

Arnold is writing a short story. He writes 5 pages a day and plans to complete it in 3 days, at which point it will be 45 pages long. How many pages long is his story right now?

Possible Answers:

Correct answer:

Explanation:

If Arnold writes 5 pages a day and plans to complete his story in 3 days, at which point it will be 45 pages long, he will finish his book by writing  more pages.

This means that Arnold has written 30 pages so far, because  .

Example Question #216 : Isee Lower Level (Grades 5 6) Mathematics Achievement

If 9 books in a book store have an average of 201 pages each, how many pages are there among all 9 books?

Possible Answers:

Correct answer:

Explanation:

If 9 books in a book store have an average of 201 pages, there will be a total of  pages among the 9 books.

Example Question #217 : Isee Lower Level (Grades 5 6) Mathematics Achievement

Lisa has two snack boxes. Each box contains four bags of cookies, and each bag contains three cookies. How many cookies are there total in the two snack boxes?

Possible Answers:

Correct answer:

Explanation:

If Lisa has two snack boxes and each box contains four bags of cookies with three cookies in each, the total number of cookies in the two snack boxes is  cookies.

Example Question #51 : How To Multiply

If there are  bananas in a bunch and Joe buys  bunches, how many bananas does he buy in total if one bunch is missing a banana?

Possible Answers:

Correct answer:

Explanation:

If there are  bananas in a bunch and Joe buys  bunches, that means he buys  bananas because the product of  and  is . However, because a banana is missing from one bunch, the number he buys will be one less, at

Example Question #57 : Operations

Jane's cat is sick, so she must give it a pill three times a day. If she gives her cat its pills for a week, how many pills does she give it during this time?

Possible Answers:

Correct answer:

Explanation:

If Jane's cat is sick and she must give it a pill  times a day, then she will give it  pills in a week. This is because there are  days in a week, and the product of  and  is

Example Question #222 : Numbers And Operations

Rebecca receives four letters. It takes her five minutes to read a letter and ten minutes to respond to a letter. How many minutes will it take her to read and respond to all four letters?

Possible Answers:

Correct answer:

Explanation:

If it takes Rebecca  minutes to read a letter and then  minutes to respond to a letter, this means that it take her  minutes to read and respond to a letter, because the sum of  and  is

Therefore, in order for Rebecca to respond to 4 letters, the following equation reveals how many minutes she will need:

Thus,  is the correct answer. 

Example Question #51 : Operations

Which of the following is the best estimate of the expression below?

Possible Answers:

Correct answer:

Explanation:

To estimate , the first step is round each number to the nearest tens place. This gives us:

Example Question #224 : Numbers And Operations

If Brenda rides her bike to work and then home every day, how many miles does she ride her bike in five days if her work is four miles away from her home?

Possible Answers:

Correct answer:

Explanation:

If Brenda's work is  miles away from her home, that means that she rides  miles every day that she rides from her home to work ( miles), and then from work back to her home (another  miles). 

Therefore, the number of miles she rides in  days is equal to .

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