A number without a decimal or fractional element is known as an integer, which includes both positive and negative numbers, including zero. Some examples are \(-3, -2, 0, 2, 3\) etc. Every integer has an opposite. For example, \(3\) has opposite as \(-3\) and \(-5\) has opposite as \(5\).
Absolute value: A number's absolute value is its numerical value without taking the sign into consideration, and it is represented by the sign \(|a|\); where a is any number.
\(e.g.\)\(|a|=a\) and \(|-a|=a\)