Operation Houses (Addition/Subtraction)

Hello everyone!

UPDATE
I added a new print profile where: - I added the 6 houses on different beds so they are in a single file
- I already left them with the letters painted, so you only have to adjust the colors you are going to use
- I slightly enlarged the line separating the sum/subtraction from the total, so a pen can be used
For all this, I recommend downloading only the last profile where all this is, it seems the best to me

Although the idea for this model is not entirely mine, I made these from scratch in Bambu Studio with some modifications from those I had seen that seemed more interesting to me

Little houses to help children at school with addition and subtraction operations
Models are available to work up to the hundreds (3 units of measure), up to the thousands (4 units of measure), and up to the tens of thousands (5 units of measure). I wanted to make one up to the hundreds of thousands, but it was somewhat difficult in Bambu Studio. If I ever learn to model with other programs that surely make the task easier, I will upload that model
Each model has two versions. Version one is simply the house. In version two, I added a hole above each unit of measure to be able to add a number when the sum exceeds 9 (for example, if in the units I add 5+6 which gives 11, I put the 1 below and carry the other 1 above the tens place)

I also left a square on the side to add the plus or minus symbol
Any comments are welcome, and any adaptation of this model is too! I hope you find it useful