# Abacus

Click on the beads to slide them left or right. Work in base

1

0

2

0

4

0

8

0

16

0

32

0

64

0

128

0

0

The purpose of this abacus is to introduce KS3 Computing students to different number bases, including binary (base 2) and hexadecimal (base 16). There are separate interactive pages on binary, hexadecimal and a more detailed page on number bases.