Double Value Vertical Flash Cards Addition Subtraction Polypropylene (PP) left and right red LED

left and right red LED lights and three control buttons

and purple (12 pieces per pentomino for a total of 72) packed in a clear plastic tub for easy storage

MPN: 006376

Use this decorative artwork to dress up classroom walls and doorsWrite student names on them to recognize their accomplishmentsThis product is acid-free per industry standards

Double Value Vertical Flash Cards Addition Subtraction Polypropylene (PP) left and right red LEDMPN: 005646 UPC: 832382008141 Notched corners for quick organization. Large, easy to handle 6 1 4" x 3 1 4" cards. Bold, heavy type to use with large groups. Durable, thick card stock (14 pt.). Self checking. Great for small groups, pairs, and whole class participation. Great for teaching the relationship between + , (e. g.: 3+1=4 on one side, 4 1=3 on the reverse). Key Features : Great for teaching the relationship of + and multiply divide;