Science
Mathematics
37 + 43 = ?
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80
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.
Statistics
64% correct 7 correct · 4 incorrect
Question added 2014-02-04