eolas/Mathematics/Prealgebra/Commutativity.md

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---
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categories:
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- Mathematics
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tags:
- theorems
- prealgebra
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---
# The Commutative Property of Addition and Multiplication
**Let $a$, $b$ represent members of $\mathbb{W}$ or $\mathbb{Z}$ then:**
$$ a + b = b + a $$
$$ a \cdot b = b \cdot a $$