Here we show you how increasing Math Fact Fluency with the Rainbow can help build fact fluency in your classroom. These activities work great for Kindergarten, 1st, 2nd & 3rd grade students to master their addition facts. We also have rainbow math packs for each math operation: addition, subtraction, multiplication & division. These make learning fun and motivating for kinders, first, second & third graders. {Basic operations, flash cards, printables}