Speed-Math.com
Title
Trachtenberg Speed Math: Learn mental math and master mathematics with this maths software
Description
Trachtenberg Speed Math software based on Jakow Trachtenberg's speed math algorithms developed during WW II while imprisoned in Nazi camps.
Languages
English
Contact
- Alpha Centauri Software
- Ipoh Perak
- Malaysia 30010
- 60-3-77271525
Additional Information
Related Domains
External Links
- Alexa: Speed-Math.com