GED Math : Numbers and Operations
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Example Questions
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 #32 :Numbers
Which of the following numbers is an integer?
Which of the following numbers is an integer?
一个整数是整个numbe任何正面或负面r, including 0.
-46.4 is a decimal, and thus not an integer.
Therefore our only integer here is 0
Example Question #33 :Numbers
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 #34 :Numbers
Sarah says 3 is a rational number. Tom disagrees and says 3 is an integer. Who is right?
Tom
Sarah
42
Neither
Both
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 #35 :Numbers
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:
Butcannot be written as the ratio of two integers, so it is an irrational number.
Example Question #36 :Numbers
What fraction of
Try thinking of
Example Question #37 :Numbers
What percent of
Try thinking of
Therefore,
Example Question #38 :Numbers
Refer to the above number line. Which of the points is most likely the location of
Convert
Example Question #39 :Numbers
Refer to the above number line. Which of the points is most likely the location of the number
Do not use a calculator.
Point
Example Question #1 :Number Lines
Refer to the above number line. Which of the points is most likely the location of the product of 2 and
Do not use a calculator.
Point
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