{"product_id":"9780486157320","title":"Calculator Puzzles, Tricks and Games","description":"Perform amazing feats of mathematical magic, answer clever riddles, and much more with this book and a handy pocket calculator. Scores of brain-teasers, puzzles, mathematical oddities, games, and recreations to fill dozens of hours with fun and excitement. Answers to problems.","brand":"Dover Publications","offers":[{"title":"Default Title","offer_id":47103797723376,"sku":"9780486157320","price":6.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9780486157320_p0.jpg?v=1763708391","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9780486157320","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}