The truck game

Math exercises are boring. No way!
The truck game animates children to exercise and rewards them for correct solutions.
The toggle button switches between the task level and the picture underneath. There is a picture to fill with color, one that has to be uncovered.
In the following picture, you can win a larger truck for just 3 right solutions.
You can fill one of the images with animated characters and vehicules.
There is also a firework.

Features:
3 correctly solved tasks make a new detail appear
multiple users can be created
progress saved for each user
statistics for each user
errors are recorded, the tasks will repeat

The game:

A vehicle loads a cube with a task that needs to be moved to the correct position.
There are 4 options to choose from.

Charging new cube: Drive empty vehicle to the right hand side or press button.

Unloading the vehicle: Press the cube above.

Level1
Addition and Subtraction to 6
The task is displayed as an image
Choice of 4 possible outcomes

Level2
Addition and Subtraction to 6
Task without a picture
4 possible results are displayed as a picture and number

Level3
Addition and Subtraction to 6
Task without a picture
Possible outcomes only displayed as numbers

Level4
Addition and Subtraction to 10
Task without a picture
4 possible results are displayed as a picture and number

Level5
Addition and Subtraction to 10
Task without a picture
Possible outcomes only displayed as numbers