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Mathematics 18 Online
OpenStudy (openstudygirl2):

Which of the following expressions shows how to rewrite 7 − 8 using the additive inverse and displays the expression correctly on a number line?

OpenStudy (openstudygirl2):

OpenStudy (skullpatrol):

Any ideas?

OpenStudy (openstudygirl2):

No

OpenStudy (skullpatrol):

What is the algebraic definition of subtraction?

OpenStudy (openstudygirl2):

minus

OpenStudy (skullpatrol):

minus what?

OpenStudy (openstudygirl2):

the biggest number first ?

OpenStudy (skullpatrol):

That's only true if you do not allow negative numbers

OpenStudy (openstudygirl2):

ow okay is the answer D ?

OpenStudy (skullpatrol):

Yes.

OpenStudy (openstudygirl2):

Yay!

OpenStudy (skullpatrol):

Good job!

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