# Chapter 1 - Section 1.4 - Adding Real Numbers - Vocabulary and Readiness Check: 2

commutative.

#### Work Step by Step

Since $x+n=n+x$, we say that addition is commutative. The commutative property states that $a+b=b+a$, where $a$ and $b$ are real numbers. This property tells us that the sum of 2 numbers is the same, regardless of the order of the numbers.

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