What Does Commutative Mean?
Switching numbers in addition is okay.
Goal:
Goal:
In math, the commutative property of addition just means that you can switch numbers (1 + 2 or 2 + 1) and still get the same answer (3). Let's see how this works.
This is Tim. He has a tire shop. Can you help him count his tires?
Yes, 4 + 3 = 7 tires. What if we switched the two sets of tires?
The answer is the same. 3 + 4 = 7 tires. Let's try another one.
Yes, 8 + 2 = 10 tires. What if we switched the two sets of tires?
The answer is the same again. 2 + 8 = 10 tires. Click the arrow to go driving. Let's see if the order of the numbers makes a difference on the road. |
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