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countryteach countryteach is offline
 
Joined: Aug 2007
Posts: 1,154
Senior Member

countryteach
 
Joined: Aug 2007
Posts: 1,154
Senior Member
going batty
Old 05-21-2008, 09:04 AM
 
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My problem is when you have a problem like: -7 - -10. I don't understand how to teach them what to do. I found a site that said to have them do the opposite and switch the minus to a plus and the second negative to a positive, so then the answer would be +3. I can see my fifth graders getting so confused. Is there a way that is easier?
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