GED Math : Types of Numbers and Number Theory
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Example Question #31 : Numbers
Give the Arabic number equivalent for the Roman numeral:
The Roman numeral can be broken down as follows:
Add these: 
Example Question #31 : Types Of Numbers And Number Theory
Which of the following numbers is an integer?
Which of the following numbers is an integer?
An integer is any positive or negative whole number, including 0.
-46.4 is a decimal, and thus not an integer.
Therefore our only integer here is 0
Example Question #31 : Numbers And Operations
What sort of solutions are found when 
No real solutions
Look at the discriminant to figure out the number of solutions.
For this equation,
Since the discriminant is positive, this means that there will be 
Example Question #32 : Types Of Numbers And Number Theory
Sarah says 3 is a rational number. Tom disagrees and says 3 is an integer. Who is right?
Both
Sarah
Tom
Neither
42
Both
They are both correct.
3 is most certainly an integer as integers are our positive and negative whole numbers.
Sarah is right too. Rational numbers are any number that can be written as a fraction of integers. 3 can be written as a fraction 
In fact, all integers are rational (but not all rational numbers are integers)
Example Question #31 : Types Of Numbers And Number Theory
The set of real numbers is divided into several subsets including positive numbers and negative numbers, prime numbers and composite number, rational numbers and irrational numbers, etc. For the following questions, select the answer that is a member of the stated subset.
Which number is irrational?
A rational number is any number that can be expressed in the form 
One of the answers is already in that form: 
But cannot be written as the ratio of two integers, so it is an irrational number.
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