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How does a calculator work?

From: Nancy
Email: puddinmiller@sbcglobal.net

Comments

I have a 7-yr-old 2nd grade student who wants to know "how they work". Can anyone recommend sites that would offer a SIMPLE explanation? This child does not have access to a computer at home, but he has permission to use the Internet at school, so a child-friendly site that our district filter won't zap would be best. Thank you.

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