MentalAddFree

提高基本数学。发展数感技能。使用你的智能手机。

A mental math educational app. An app to increase your skills in addition with.

Use at home, school or anywhere. Increases basic mental mathematics skills.

Great for anyone to use: Your children, pupils, students...

The quizzes combined with a thorough study of the graphic number line, are invaluable for to gain a developed number sense skill, and for to speed up each calculation process.

This is the free version of the pay version app called 'MentalAdd'.

For more information see the app MentalAdd, and please see also:

http://hjarpe.se/android-apps/math.html

Here you'll find some more useful math training apps to help anyone to improve in basic mathematics, use:

'MentalAdd' to practice addition, and subtraction.

'Mentalmult' to practice multiplication.

'MentalDiv' to practice division.