Subtraction/Sustracci=n Pocket Flash CardsSupplement ESL/ELL SSL and bilingual curriculum with colorful cards that take learning on the go! Fun and easy to use kids can learn new facts and practice new skills individually or with friends, Durable cards; no see-through, 56 two-sided cards, 3 1/8"" x 5 1/4"", SKU: EDRE15181