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We have a Aurex Scientific Calculator SC-6145 but unfortunately have not instructions on how to use it. We cannot simply multiply two numbers together because it is in a mode we cannot get it out of. Does anyone know where I can get my hands on a set of instructions for this model? Thank you

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Press Mode, then 1.

Posted on May 06, 2011

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There are plenty of casio 991 manuals here. Take your pick!
http://safemanuals.com/zearch_160.php

Dom't forget to leave feedback if it solves your problem. 'fixya'!

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