This is a great math center or whole class game that focuses on place value. Each number is represented in three different ways: standard form, expanded form, and word form.
The first way to use these cards is to pass one out to every student and then have them find their matching numbers.
This could also be used with small groups to find all the sets of numbers.
Finally, you could give each student a card and ask them to write their number in two other forms and then have them find their matching forms with other students in the classroom.
There are 30 totals cards = 10 groups of 3.
The numbers go up to the millions place value.