{"product_id":"learning-advantage-the-original-triangle-flash-cards-addition-subtraction-20-per-set-3-sets","title":"LEARNING ADVANTAGE - The Original Triangle Flash Cards - Addition \u0026 Subtraction - 20 Per Set - 3 Sets","description":"\u003cp\u003eEliminate memory overload and learn 4 math facts on each side of a card! Triangle Flash Cards teach families of facts, showing the relationship between addition and subtraction. How is 4 in one corner related to 7 and 3 in the other corners? For 2 or more players. Each card displays eight problems - four are addition and four are subtraction. Relationship between addition and subtraction facts is emphasized. Students will gain efficiency in memorizing. Cards permit individualization of drill without changing cards. A harder fact is printed on one side of a card and an easier fact is printed on the other side. Includes variations in activities. Supports state and national mathematics standards. Each set includes 20 cards and instructions. Sold as 3 identical sets of flash cards.\u003c\/p\u003e","brand":"LEARNING ADVANTAGE","offers":[{"title":"Default Title","offer_id":40815068348439,"sku":"ERSCRE4551-3","price":26.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0136\/0537\/1963\/files\/c62656b07802a6df267ff08076261cd1f65714b3.jpg?v=1703202937","url":"https:\/\/everydaysupplyco.com\/products\/learning-advantage-the-original-triangle-flash-cards-addition-subtraction-20-per-set-3-sets","provider":"Everyday Supply Co","version":"1.0","type":"link"}