Addition properties

The sum of the natural numbers a and b is found as follows: when the count reaches to a, b more numbers are counted. The number reached is the sum of a and b.

Inverse binary operation to addition is subtraction.

Addition properties are:

• commutativity - "commutative law of addition" or "commutative property of addition";
• associativity - "associative law of addition" or "associative property of addition".

Identity element for addition, also known as the additive identity:

See also:

• Arithmetic Operations