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Q&A #417

Teachers' Lounge Discussion: Addition error pattern

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From: Myriam Kobylkevich <AMKOBYL@aol.com>
To: Teacher2Teacher Public Discussion
Date: 2002021413:11:32
Subject: Re: Addition error pattern

I agree that only asking the student will answer the question.

Perhaps the confussion stems from the fact that:

0 X any number = 0

This is likely if the student has been introduced to multiplication,
particularly 2-digit number multiplication.

The error could be a misunderstanding of arithmetic algorithms half
memorized without regards for their meaning.

It could be also an inadvertent automatic performance, like driving
part-way your usual route to work, when you were headed to the grocery
store.

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