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Q&A #4319

Teachers' Lounge Discussion: Estimation: Order of Magnitude, Compensation

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From: Mary <nicapri@comcast.net>
To: Teacher2Teacher Public Discussion
Date: 2012092520:37:38
Subject: Math compensation

	
Hi when u are compensating in addition and subtraction does it matter
how many you add to each number for example 92 - 67 or 77 + 45

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