{"product_id":"montessori-subtraction-working-charts-510500330","title":"Subtraction Working Charts","description":"\u003cp\u003eThe Subtractions Working Charts are a tool used to practice and memorize subtraction facts. The set contains: 1 control chart; 2 working charts; and a box of answer chips.\u003c\/p\u003e","brand":"Montessori Outlet, Inc.","offers":[{"title":"Default Title","offer_id":54751605883048,"sku":"510500330","price":38.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4288\/9896\/files\/510500330.png?v=1779437549","url":"https:\/\/montessorioutlet.com\/products\/montessori-subtraction-working-charts-510500330","provider":"Montessori Outlet, Inc.","version":"1.0","type":"link"}