Subtration

A brilliant app for practicing mental Subtraction written by a Mathematics teacher.

Learn Subtraction while waiting, on the bus, on the train, at school with friends …

The program is designed for children and adults to improve their mental ability. There is a minimum amount of input from the user.

The Learner speaks out the answer before the answer appears.

There are 5 levels to choose from and you can change it as required.

The learner can input the time using the Slider (1 – 20 seconds) for the answer to appear before the next question is displayed. Press Stop move the slider to the required time Press Start.

You can also work the answer using pen and paper.
If you need longer time for harder questions just press Stop/Start as required.

Enjoy.