Introduce basic addition facts. Photos on front and the numbers on back. Format adapts to abilities and features self-checking pieces with photographs for easy recognition and retention. Two-sided 3-piece puzzles. 15 puzzles/45 pieces. Ideal for teaching: Kindergarten to 2nd Grade. Ages 5 to 7.- SKU: EDRE19078 Brand New 078628360134 TREND T-36013
