Nikolett, all
Sorry that I may not able to explain so clear.
1. Yes the numbers are written on the board as well as tiles. Then once child can matching, then remove the number on the hundred number board. So they learn to count it.
2. All pieces. Firstly, the tiles should be put in order, in advance they are mixed up. He/she put them in order. In advance level, he/ she can skip 1 or 2 that will be useful for the number sense and 2's Multiplication.
3. Can teach about odd, even number, 2's- 3's Multiplication. I'm just thinking that this can be applied for addition. For example, we have 2 tiles in the board and add one more then it's 3, thing like that for subtraction too. This makes math visible& tangible.
I have some samples attached.
Tips: you can use any pictures of your child, animals, things that interesting on the table that encourage to play this game.
Hope this help, good luck!!