Integers and real numbers

Last updated: 3 Mar 2009

In the GMAT you will be expected to know the following sets of numbers.

Integers
The integers are the all the numbers in the set { ..., -3, -2, -1, 0, 1, 2, 3, ... }.
So no fractions or numbers with a decimal point.
Real numbers

The real numbers include all integers, e.g. 3, 1235 and -6, and all the numbers between the integers e.g. -3.5, 3/4 and mathematical expression.

The real number line with -3.5, 3/4 and Pi marked on it

You should assume that all answers in the GMAT are real numbers unless you are told otherwise.

You may also have heard of the natural, counting, whole, rational, irrational and imaginary numbers however you will be pleased to find out that knowledge of these sets of numbers is not tested in the GMAT and therefore you have no need to revise them.

Next page: Positive and negative numbers

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