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Mrs. Walker Mrs. Walker is offline
Joined: Feb 2008
Posts: 15
New Member

Mrs. Walker
Joined: Feb 2008
Posts: 15
New Member
do you mean positive and negative?
Old 05-21-2008, 08:32 AM
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I teach my 6th graders this way:

First you have to make the problem an addition problem by changing the minus to a plus and changing the sign of the last number. For example, 5-6 now becomes 5+ -6. THEN,

If the signs are Different, find the DIFFERENCE between the two numbers.
If the signs are the Same, find the SUM of the two numbers.
Pick the sign of the larger number for your answer.

Hope that helps!
Mrs. Walker is offline  

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