This program would help you to calculate squares, cubes, square roots and cube roots in you head along with multiplication and division. Also you’ll learn a system using which result verification can be done without rework.
100 Typing Lessons and Practices From the very basics to very advanced levels. This might be the best free online typing tutorial out there. Benefits -
1.Accelerate your typing speed
2.Focus on your text and ideas
3.Improve your ergonomics
4.Be confident with computers