Here's a new one! An Online Abacus!
A simple way to physically show numbers from 1 to 50
From the Abacus below, to a Scientific or BMI Calculator. - "Online Calculator" always available when you need it.

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Online Abacus - Online Calculator - Full Screen Free Online Abacus

Online-Calculator.com requires Adobe Flash to be installed for this page to work correctly. You can get Flash Here.

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