{"product_id":"arithmetic-without-a-pencil","title":"Arithmetic Without a Pencil","description":"Edith M. Joy introduces practical methods for performing arithmetic mentally with speed and accuracy. Using clear explanations, exercises, and numerical shortcuts, the book develops concentration, memory, and confidence in everyday calculation. By emphasizing mental computation rather than written work, it transforms arithmetic into an engaging discipline that strengthens both numerical fluency and logical thinking.","brand":"DD Sales","offers":[{"title":"Default Title","offer_id":54568924512535,"sku":"R0B8U4TZG4F95OM0HX","price":648.9,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/6918\/8119\/files\/3534701.webp?v=1785408081","url":"https:\/\/payment.letskitaboo.com\/te\/products\/arithmetic-without-a-pencil","provider":"Kitaboo One eStore","version":"1.0","type":"link"}