I made this game board to use with my second graders. In partners, they use this board and one die. Taking turns, partners roll three numbers and write them as a 3-digit number at the top of the board under the 100's place, 10's place and 1's place. Then their partner has to write it three different ways: standard form, written numeral form and expanded form. They check each others work and then switch roles. It allows them to work together and practice this new skill!