Although kids love to play games, sometimes your PC can also be your best friend in educating them. Kid's Abacus 2.0 is a free mathematical application designed to allow younger users to count from 1 to 100.

The developers claims that the Maths Worksheets have been designed for ease of use, fast setup and interactivity. There are plenty of audio-visual and multimedia features built-in to help users learn the basics of counting.

This is very much aimed at young learners though. There's nothing beyond counting possible here and it's a shame the developers didn't add a few more simple mathematical challenges to stretch young users. On the plus side, it's great for pronunciation (in English) because it features a realistic speech synthesizer.