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Mathematics 9 Online
OpenStudy (anonymous):

A friend is having trouble finding the sum of -84 and 28. What explanation would you give to help your friend?

OpenStudy (anonymous):

-84+28=-56 or tell her to get a calculator ;)

OpenStudy (anonymous):

It's still a negative so it's just making it less of a negative basically.

OpenStudy (anonymous):

-84 + 28 can also be written as (-56) + (-28) + (28) (-28) and (28) are opposite of each other and cancel each other out leaving -56 as the answer

OpenStudy (anonymous):

tell him the rule of addition between two numbers having different sign....so that he can recall..

OpenStudy (anonymous):

or tell him that in addition,the sign of a bigger number is always the sign of the answer.

OpenStudy (anonymous):

Thanks everyone!

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