The site proposes to build the numbers from 3 to 10 in the form of decompositions.

After choosing a target number, the child must build several floors by clicking on the blocks.
- if the breakdown is correct, the floor is validated and the site goes up one floor.
- if the decomposition is too big, you have to click on the backhoe to start the floor again.
It is possible to change the type of blocks (with / without window) by clicking on the Serge the llama button.

To reset the scores on the home screen, just click 5 times on Serge the llama.

Skill: Additive Decompositions
* Talk about numbers using their decomposition (expected at the end of cycle 1)