Numbers Thumball (4" or 6") Thumball
Looking for a fun way to learning numbers, addition, subtraction or multiplication? The Numbers Thumball is for you. Where your thumb lands have them read out the number. If they are unsure, have them count the dots associated with the number. The Numbers thumball help with number recognition and counting.
More advanced? try adding, subtracting or multiplying your right thumb by your left or visa-versa.
This is easily one of the most engaging and simple math engagement tools you can get.