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.
The basic abacus below is a very simple way to show numbers from 1 to 50. This was requested by a primary school teacher. We will soon be adding some new abacus features, such as showing the numbers in hundreds, tens, and units. We will also be adding a Chinese Abacus.