All ISEE Lower Level Math Resources
Example Questions
Example Question #1 :How To Find The Missing Part Of A List
What number comes next in this sequence?
2, 3, 5, 7, 11, 13, __
Looking at this sequence, the most obvious thing may be the string of odd numbers. But as you look more closely, you'll notice that the 9 is missing and that there is a 2 in the list. Whenever you see a 2 in a list of odd numbers, your "prime number sensor" (not a real thing) should be on alert. As this is a list of consecutive prime numbers, the next number in the sequence is 17.
Example Question #2 :How To Find The Missing Part Of A List
Define two sets as follows:
How many elements are in?
is the intersection of setsand- the set of all elements that appear inbothsets. As can be seen, those elements are- making 3 the correct choice.
Example Question #3 :How To Find The Missing Part Of A List
Use the number sequence to answer the question.
What is the next number in the sequence?
The numbers in this sequence follow a pattern; each new number is twice the one that came before it. To find the next number in the sequence, multiply by two.
.
Example Question #1 :How To Find The Missing Part Of A List
Find the missing number in the sequence:
20
16
24
12
16
The pattern of the sequence is to multiply each number by进入下一个号码。
and
Example Question #1 :Sets
What is the next number in this sequence?
Notice that the numbers in this list are growing at an increasing rate.
First you add:
然后你添加:
然后你添加:.
By the time you get to the 18, it is time to add 6:
Example Question #1 :How To Find The Missing Part Of A List
What number comes next in the sequence?
The sequence of numbers represents prime numbers, beginning with two. The next prime number in the list would be.
Note thatis not a prime number, since it is a multiple ofand.
Example Question #7 :How To Find The Missing Part Of A List
What is the next number in this series?
Since the pattern is adding 2, you must add 2 to 9 to get 11.
Example Question #8 :How To Find The Missing Part Of A List
What is the missing number in this sequence?
In this sequence, each number is a multiple of, and each number increases incrementally by. The multiple ofthat is betweenandis; therefore,is the correct answer.
Example Question #9 :How To Find The Missing Part Of A List
What is the next number in the sequence?
In the sequence, each subsequent number is larger than the previous number by 6.
To calculate the next number, 6 should be added to 24, resulting in 30. Thus, 30 is the correct answer.
Example Question #1 :How To Find The Missing Part Of A List
What is the value ofin this sequence?
None of these
In this sequence, each subsequent number is 5 less than the preceding number. As a result, thewill be equal to 9, because 9 is 5 less than 14, which is the preceding number.
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