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Mathematics 18 Online
OpenStudy (anonymous):

Give an example of why subtraction is not commutative

jimthompson5910 (jim_thompson5910):

Since 3 - 2 = 1 but 2 - 3 = -1, this means that \[\large 3-2 \neq 2-3\]

jimthompson5910 (jim_thompson5910):

This is why order is important when it comes to subtraction

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