Use APKPure App
Get K-12 Math Training aka koom-on old version APK for Android
Suggested mathematical K-12 trainer
FREE!!! SOFTWARE FOR MATH TRAINING (K-12 suggested)
For kids 6 years old and over
Step 1: Please, download and install free version from Android Market,
Step 2: Start training and reach each goal,
Step 3: Have fun while you practice...
As you practice, each good answer allows good points to reach the next level, but be careful because the wrong ones... will make you lose points.
Full version coming soon...