{"product_id":"mental-math-harry-lima-9798266281554","title":"Mental Math: From Ancient Coins to Crypto","description":"\u003cp\u003eMental Math: From Ancient Coins to Crypto will train your brain to see patterns, solve problems, and handle numbers with ease, without paper, pencil, or a calculator.\u003c\/p\u003e\u003cp\u003eNumbers are everywhere in daily life: from checking the time and splitting a restaurant bill, to figuring out discounts, loans, or the value of digital money. Mental Math is faster, clearer, and more powerful than you think.\u003c\/p\u003e\u003cp\u003eThrough stories, real-world examples, and simple strategies, this book takes you on a journey across the history and future of numbers. The journey from ancient coins to modern crypto shows us one truth: math has always been the language of trust, trade, and progress. And with this book, you'll finally master it, in your mind.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Harry Lima\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9798266281554\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Independently Published\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 09\/20\/2025\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 110\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.35lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.00h x 6.00w x 0.23d","brand":"Harry Lima","offers":[{"title":"Paperback","offer_id":48437709242623,"sku":"9798266281554","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_478c8302-d598-4c75-a9bc-dca2decb9a43.jpg?v=1777163533","url":"https:\/\/www.whiterainbookhouse.com\/products\/mental-math-harry-lima-9798266281554","provider":"WR Book House","version":"1.0","type":"link"}