**Integers**. The

**integers**are , -4, -3, -2, -1, 0, 1, 2, 3, 4, -- all the

**whole numbers**and their opposites (the positive

**whole numbers**, the

**negative whole numbers**, and zero). Fractions and decimals are

**not integers**. For example, -5 is an

**integer**but

**not**a whole

**number**or a natural

**number**.

How do you add two negative integers?

Rule: The sum of any

**integer**and its opposite is equal to zero. Summary:**Adding two**positive**integers**always yields a positive sum;**adding two negative integers**always yields a**negative**sum. To find the sum of a positive and a**negative integer**, take the absolute value of each**integer**and then subtract these values.Can an even integer be negative?

Since

**odd**and**even**numbers are defined only in reference to the set of**integers**(, −3, −2, −1, 0, 1, 2, 3, ), all**negative**numbers**can**also be either**odd**or**even**. To find the set of**odd**natural numbers, we use 2N+1 where N is any natural**number**.