Classifying Rational Numbers & Vocabulary

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Whole numbers are non-negative numbers that do not have fractions or decimals. They include 0, 1, 2, 3, and so on.

An integer is a whole number that can be positive, negative, or zero. Examples include -3, 0, and 5.

Negative numbers are numbers that are less than zero, represented with a minus sign (-). Examples include -1, -2.5, and -100.

The opposite of a number is the number that is the same distance from zero on the number line but in the opposite direction. For example, the opposite of -7 is 7.

Natural numbers are the set of positive counting numbers starting from 1. They do not include zero or negative numbers.

Whole numbers are the set of non-negative integers including 0, 1, 2, 3, and so on.

The absolute value of a number is its distance from zero on the number line, regardless of direction. For example, the absolute value of -5 is 5.

A positive number is any number greater than zero. Examples include 1, 2.5, and 100.