{"product_id":"unknown-quantities-flash-cards-addition-subtraction","title":"Unknown Quantities Flash Cards - Addition \u0026 Subtraction","description":"Set of 162 easy to read 6-1\/4\" x 3-1\/4\" (16cm x 8cm), double-sided flash cards,  Cards feature practice for solving unknown quantities in one of three locations.","brand":"Learning Advantage","offers":[{"title":"Default Title","offer_id":49962499965205,"sku":"CTU8651","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/a10871a46ac40133e4868af445722b36cc16b082.jpg?v=1781079021","url":"https:\/\/unitedsupplycorp.com\/products\/unknown-quantities-flash-cards-addition-subtraction","provider":"United Supply Corp.","version":"1.0","type":"link"}