ISEE Lower Level Math : Operations

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

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Example Questions

Example Question #46 : How To Divide

If Henry ran  miles in  minutes and  seconds, how long (on average) did it take him to run each mile?

Possible Answers:

 minutes and  seconds

 minutes

 minutes and  seconds

 minutes,  seconds. 

Correct answer:

 minutes and  seconds

Explanation:

If Henry ran  miles in  minutes and  seconds, we can find how long each mile took him to run by dividing his time by .  and 

Therefore, the answer is that each mile took Henry (on average)  minutes and  seconds to run.

Example Question #131 : Operations

How many prime numbers are there between 14 and 30?

Possible Answers:

Correct answer:

Explanation:

The prime numbers between 14 and 30 are 17, 19, 23, and 29. 

Thus, there are 4 prime numbers. 

Example Question #132 : Operations

Kellie is a maltipoo, meaning he is half poodle, half maltese. Kellie then has a litter with Frankie, who is half chihuahua, half pug. What percentage maltese will the puppies be?

Possible Answers:

25 percent

75 percent

0 percent

50 percent

Correct answer:

25 percent

Explanation:

Because Kellie is half maltese, if she has puppies, then those puppies will be half of the breed mixture that she is. If she is half maltese, she is 50 percent maltese. Half of 50 percent is 25 percent. Therfore, 25 percent is the correct answer. 

Example Question #294 : Isee Lower Level (Grades 5 6) Mathematics Achievement

Evaluate: 




Possible Answers:

Correct answer:

Explanation:

To correctly evaluate this problem, first find the product of . Then divide that product by a divisor of 

The solution is:

Example Question #50 : How To Divide

Simplify: 

Possible Answers:

Correct answer:

Explanation:

To simplify  first reduce the fraction to an equivalent improper fraction with small numbers. Then convert to a mixed number:



Note: 

Alternatively you could reduce the original fraction by dividing the numerator by the denominator:



Example Question #51 : How To Divide

Evaluate: 

Possible Answers:

Correct answer:

Explanation:

To solve this problem, first find the product of . Then divide that product by a divisor of .

A negative factor times a positive factor must equal a negative product:



Example Question #52 : How To Divide

Evaluate:

Possible Answers:

Correct answer:

Explanation:

To evaluate this problem, first find the reciprocal of . To do so, you can simply switch the numerator and the denominator:

The reciprocal of .

This will allow you to switch the operation symbol from division to multiplication:



Example Question #53 : How To Divide

Evaluate:

Possible Answers:

Correct answer:

Explanation:

This problem can be approached using several different strategies. One strategy is to reduce  and then divide by :





Another method you could have used to find the correct answer is to find the reciprocal of  and then switch the operation symbol:

Example Question #54 : How To Divide

Evaluate:

Possible Answers:

Correct answer:

Explanation:

To correctly evaluate this problem first find the product of:



Then divide  by a divisor of :



To check your answer:



Remeber a negative factor times a negative factor must equal a positive product.


Example Question #133 : Operations

Find the quotient of:

Possible Answers:

 

Correct answer:

 

Explanation:

To evaluate this problem use the long division standard algorithm:

Isee standard division algorithm

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