ISEE Middle Level Math : ISEE Middle Level (grades 7-8) Mathematics Achievement

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

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Example Questions

Example Question #31 : Whole And Part

You and you friends make  doing some yard work.  If you have four friends and you need to split the revenue evenly, how much do you make?

Possible Answers:

Correct answer:

Explanation:

Since there are five of people to split it (you and four friends) you must divide the  by  which is,

.

Example Question #31 : How To Find The Part From The Whole

Find  of .

Possible Answers:

Correct answer:

Explanation:

To find a fraction of a whole number, we will multiply the fraction by the whole number.  So,

 

Therefore,  of  is .

Example Question #32 : How To Find The Part From The Whole

What is  of ?

Possible Answers:

Correct answer:

Explanation:

To find a fraction of a whole number, we will multiply the fraction by the whole number.  We get

Now, we can solve.

We can simplify this, and we get

 

Therefore,  of  is .

Example Question #961 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Which of the following numbers yields a remainder of 7 when divided by 9?

Possible Answers:

Correct answer:

Explanation:

We can test each of the numbers in tun by dividing each by 9:

106 is the correct choice.

Example Question #32 : How To Find The Part From The Whole

Find  of .

Possible Answers:

Correct answer:

Explanation:

To find a fraction of a whole number, we will multiply the fraction by the whole number.  So,

 of 

can be written as

Now, we can multiply.

Example Question #962 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Add in modulo 13 arithmetic:

Possible Answers:

Correct answer:

Explanation:

To add numbers in modulo 13 arithmetic, we can add, divide by 13 and note the remainder:

The remainder is 4, so

 modulo 13.

Example Question #963 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Subtract in modulo 13 arithmetic: 

Possible Answers:

Correct answer:

Explanation:

To subtract two numbers in modulo 13 arithmetic, we can simply subtract first:  

Since the number is negative, add 13:

 in modulo 13 arithmetic.

Example Question #31 : How To Find The Part From The Whole

Find  of .

Possible Answers:

Correct answer:

Explanation:

To find a fraction of a whole number, we will multiply the fraction by the whole number. 

 

So,

 of 

can be written as

Now, we can write  so it is in fraction form. We get

Now, before we multiply, we can make things easier and simplify.  We can simplify the  and .  The number  can go into both numbers.  We get

Now, we can multiply straight across.

 

Therefore,  of  is .

Example Question #964 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Multiply in modulo 13 arithmetic: 

Possible Answers:

Correct answer:

Explanation:

To multiply two numbers in modulo 13 arithmetic, find the product, divide by 13, and note the remainder.

The remainder is 11, so 

 modulo 13.

Example Question #41 : How To Find The Part From The Whole

What is  of  ?

Possible Answers:

Correct answer:

Explanation:

To find a fraction of a whole number, we will multiply the fraction by the whole number.  So,

 of 

we can write it as

To multiply, we will write  in fraction form.  We get

Now, we multiply straight across.

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