Help your students practice building 2, 3, & 4-digit numbers! You can either have your students do this as a math craftivity or play it like a game with a dry erase mat, deck of cards, and marker. Place Value Rainbow Math CraftivityThese Number Rainbows are perfect as a St. Patrick's Day math activity. Students will cut out different colors of the rainbow as they answer math place value facts. Students will practice: standard form, expanded form, word form, place value blocks, place value c