Students master math with fun-to-use regrouping kits that make complicated problems easy to solve! Each kit includes a place value regrouping tray and place value coins…plus 40 self-checking problem cards. Students simply place a card onto the tray and use the color-coded coins to visually represent the problem. Then students regroup the tiles and use the handy write & wipe activity mat to work out the answer. After solving, students flip the card over for easy self-checking! Complete set comes with all 4 kits shown, each with a guide (write & wipe markers not included). Each kit also available separately. Additional Information