{"product_id":"secrets-of-mental-math","title":"Secrets of Mental Math by Arthur Benjamin and Michael Shermer","description":"\u003ch2\u003e\n\u003cem\u003eSecrets of Mental Math\u003c\/em\u003e by Arthur Benjamin and Michael Shermer\u003c\/h2\u003e\n\u003cp\u003eBenjamin, known for public performances of rapid mental calculation, teaches the specific techniques behind lightning-fast arithmetic — multiplying large numbers, calculating square roots, guessing calendar dates — breaking down tricks that look like magic into learnable, systematic methods.\u003c\/p\u003e\n\u003cp\u003eThe book progresses from basic addition and subtraction shortcuts to genuinely impressive feats like squaring three-digit numbers mentally, with practice exercises throughout designed to build real calculation speed rather than simply explain a handful of party tricks.\u003c\/p\u003e\n\u003cp\u003eA practical, skill-building guide to mental arithmetic from a professional mathemagician.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e📚 Book Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e✅ Premium Quality Books.\u003c\/p\u003e\n\u003cp\u003e✅ High Printing quality.\u003c\/p\u003e\n\u003cp\u003e✅ Eye Friendly.\u003c\/p\u003e\n\u003cp\u003e✅ Matt cover (Paperback)\u003c\/p\u003e","brand":"Book Tank BD","offers":[{"title":"Default Title","offer_id":48208423288969,"sku":null,"price":390.0,"currency_code":"BDT","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0624\/7038\/9897\/files\/2689_secrets-of-mental-math-the-mathemagicians-guide-to-lightning.jpg?v=1788107553","url":"https:\/\/booktankbd.com\/products\/secrets-of-mental-math","provider":"Book Tank BD","version":"1.0","type":"link"}