Make practice more fun! This dice or card game was created for 4th graders to practice reading and writing numbers in base-ten numeral form (standard form), number name (word) form, and expanded form. The premise: Students roll a die or flip cards 7 times to create a 7 digit number. They get to choose which place to put each digit, which helps cement the ideas of place value further. When they finish creating their numbers, they write them in all three forms. The winner has the greatest number.