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OpenStudy (anonymous):
An eighth-grade student claims she can prove that subtraction of integers is commutative. She points out that if a and b are integers, then a – b = a + -b. Since addition is commutative, so is subtraction. What is your response?
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mathslover (mathslover):
Hello @tasha20 , Welcome to OpenStudy. What is your response about the stated question?
OpenStudy (anonymous):
you know, that's a pretty smart 8th grader
mathslover (mathslover):
lol @Luis_Rivera :)
OpenStudy (anonymous):
no the subtraction is not commutative.
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