Discussion: Keynote Part 1

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posted by: Judith Fonzi on May 13, 2003 at 4:31PM
subject: What if the - isn't a minus sign ?
What if the student wasn't using the - as a minus sign at all ? What if
it simply represented a notation for the intermediate result of
132
- 7
_____
125 and then the student subrtacted the 50 (in her head) and recorded
the final result as 75.
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