This resource includes a game and practice worksheet for matching two digit numbers in standard form to the correct expanded form and to a description of the number in tens and ones.
The first three pages are the game. Print on card stock and cut apart. Then distribute face down to your students. On your cue, they should get up and find the other two people that have cards that match their card.
The last two pages include a cut and paste practice sheet. Students will cut out and match the description and expanded form to the number in standard form.
Edited 3/17/14 to correct a mistake. Please re-download! :)