{"product_id":"subtraction-13-18-skill-drill-flash-cards","title":"Subtraction 13-18 Skill Drill Flash Cards","description":"Content-rich math cards do their job, teaching students new skills in a fun way. This educational aid develops basic subtraction skills 13-18. Self-checking, answers on card backs. Sturdy cards and storage box. Students will delight in mastering new skills. No-see-through cards with quick-sorting, rounded corners. Includes 99 cards, 3\" x 6\". For ages 6 and up.","brand":"TREND","offers":[{"title":"Default Title","offer_id":49339769651477,"sku":"T-53104","price":28.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/27a713df6f720fcfd406ff007c7fffd5aa81028d.jpg?v=1758415586","url":"https:\/\/unitedsupplycorp.com\/products\/subtraction-13-18-skill-drill-flash-cards","provider":"United Supply Corp.","version":"1.0","type":"link"}