99 + 23 + 56 = ?

Explanation

Addition is often denoted by the symbol "+". It is the first basic mathematical operation of arithmetic, the others being subtraction, multiplication and division. Addition is a mathematical operation that represents the total amount of objects together in a collection. It is commutative, meaning that order does not matter. It is associative, meaning that when one adds more than two numbers, order in which addition is performed does not matter. Repeated addition of 1 is the same as counting. Addition of 0 does not change a number.