This Bingo game uses the three different number forms: expanded, written, and standard. The students are to put a chip down only if their number is in the correct form. For example, if you call the number "6,083 in expanded form," one student may have it, but another student might have the same number written in standard form. Only the first child can put a chip down. This way, the students have to know what the different forms are to lay down a chip.