WuS72

Rated 3.29(7) — WuS72

It would be so easy for the green marble to reach the end of the marble slide...Only if there weren't these obstacles. Especially the holes in the track have to be plugged again and again.It's important to keep the track clean. So you can gather a lot...

Rated 5.00(3) — WuS72

The 'Math - Fractional Arithmetic' app shows the solution of any fraction exercise step by step. It is displayed exactly as it has to be written into an exercise book. This helps the student to understand, how he can solve fraction exercises in general...