ISEE Lower Level Math : How to find the missing part of a list
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Example Question #21 : How To Find The Missing Part Of A List
What is the value of x in the following set?
Given that each subsequent number is 3 times the previous number, the value of x is 1, because 1 times 3 is 3. Therefore, 1 is the correct answer.
Example Question #22 : How To Find The Missing Part Of A List
What is the value of x in the set below?
The pattern in the set is that each number increases by 4. Therefore, since 4 plus 20 equals 24, x is 24.
Example Question #23 : How To Find The Missing Part Of A List
What is the missing value in the following set:
The set is made up of only even numbers that are below 
Example Question #24 : How To Find The Missing Part Of A List
The follow set is all the outcomes of rolling a die. What is
Since a die has six sides, all of the possible outcomes are 
Since 
Example Question #25 : How To Find The Missing Part Of A List
If the set below includes all possible whole number factors of 
A factor is a number that is multiplied by another to get another value.
To get 
and also
With that in mind, that answer must be 
Example Question #23 : How To Find The Missing Part Of A List
Find the missing part to the set:
When finding the missing part of a set, we must first look at the relationship each number has within the set. So, looking at the set
we will look at the numbers in the set. We can see the first three numbers are 2, 4, and 6. How are these numbers related? We can see that from one number to the next, we are adding 2 (if we add 2 to 2, we get 4; if we add 2 to 4 we get 6). Let's look at the last two numbers, 10 and 12. Does that same relationship work? Yes, we are again adding 2 to 10 and we get 12.
So, to find the missing number in the 
Therefore, the missing number in the set is 
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