What property of addition is used in the equality? \( 2+9=9+.2 \) A. Closure property B. Associative property C. Commutative property D. Additive-identity property

The equality \( 2 + 9 = 9 + 2 \) showcases the beauty of the commutative property of addition, which tells us that the order of the addends doesn't change the sum. So, whether you add 2 to 9 or 9 to 2, you'll end up with the same delightful total of 11! Moreover, this property is used in everyday life without us even realizing it! Whether you’re stacking blocks in a specific order or sharing snacks with friends, switching positions doesn't change the fun (or the result). It's the perfect excuse to rearrange things however you like – the total will always stay the same!