Thursday
December 18, 2014

Homework Help: math

Posted by jonny on Friday, August 24, 2012 at 9:51am.

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?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

math - prove -x - y = - y - x, for all integers x and y and does part (a) imply ...
math - Give a counterexample to show that each of the following generalizations ...
discrete math - 1)prove that if x is rational and x not equal to 0, then 1/x is ...
math - How can I figure this out? Five integers have an average of 69. the ...
math - The sum of the reciprocals of two consecutive even integers is 11/60. ...
7th grade math - the sum of two integers is zero. the difference of the same two...
Integers - The larger of two positive integers is five more than twice the ...
discrete math - Let A= {for all m that's an element of the integers | m=3k+7 for...
Fractions and Integers - If x/4+y/5=19/20 where x and y are positive integers ...
math - i dont get this question consecutive integers are integers that differ by...

Search
Members