For example, 4 is split into 3 and 1. The three and the one are parts of four. They can join back together again to make the whole of four. The Numberblocks engage in this activity by splitting ...

Bigger: roll two dice to pick out two Numberblocks. Ask your child which one gets to say 'I'm bigger than you!' and which one says 'I'm smaller than you!' Line Up: roll two dice to pick out two ...