This addition machine is hungry for numbers! It shows children that there are multiple ways to get to the same number. It can grow with your children because you can put in any numbers you want. Let me know if you make this addition machine! ⭕ MATERIALS:⠀ - Gift Box style Cardboard Box ( the lid should fold over the top and front) - Box cutter - Two Paper Cups - Pencil - Two Colored Paper Squares - Marker - Tape - Dry Erase Marker - Pom Poms, paper scrunched into balls or any small soft objects

The mechanism of the Add-O-Matic Adding Machine.