Integer, positive or negative whole-valued number, or 0 The integers are created using the counting numbers 1, 2, 3,... and the subtraction operation. When you subtract a counting number from itself, the result is zero; for example, 4 4 = 0. When you subtract a greater number from a smaller number, you get a negative whole number; for example, 2 3 = 1. Every integer can be deduced from the counting numbers in this fashion, resulting in a set of numbers that can be subtracted.

Integers include the numbers -5, 1, 5, 8, 97, and 3,043.

-1.43, 1 3/4, 3.14,.09, and 5,643.1 are examples of non-integer numbers.

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