{"product_id":"double-value-vertical-flash-cards-addition-subtraction-set-set-of-81","title":"Double-Value Vertical Flash Cards - Addition \u0026 Subtraction Set - Set of 81","description":"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).","brand":"Learning Advantage®","offers":[{"title":"Default Title","offer_id":49324569854229,"sku":"CTU8662","price":27.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/ea25c4fca48499956783419b84e101a43fa8a8b9.jpg?v=1758224094","url":"https:\/\/unitedsupplycorp.com\/products\/double-value-vertical-flash-cards-addition-subtraction-set-set-of-81","provider":"United Supply Corp.","version":"1.0","type":"link"}