About this Site
This Computational Fluency site is designed to allow people to practice and improve their mental arithmetic through simple practice.
Give it a try and see if you can improve your speed of adding, subtracting, multiplying and dividing in your head.
For our Welcome post please see Welcome to Computational Fluency.
For our very short How-To post, please see How to use the Computational Fluency Site.
This site is created and maintained by Quokka Systems Consulting Ltd. If you find a problem, please report it to firstname.lastname@example.org.