{"product_id":"cross-numbers-john-parker-9780906212950","title":"Cross Numbers","description":"Crossnumbers are the mathematical equivalents of crossword puzzles. The earlier puzzles in the book only require simple arithmetic and basic knowledge, but, as the sequence continues, so the level of difficulty increases. The later ones also demand some enjoyable logical reasoning to tease out the solutions. For the final puzzles, access to a calculator would be helpful and some would say essential. Anyone who enjoys arithmetic and likes to search for patterns and relationships between numbers will find much to please them in this book.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e John Parker\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 0906212952\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9780906212950\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Tarquin\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 01\/01\/2000\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 32\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.38lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 11.58h x 8.14w x 0.12d","brand":"John Parker","offers":[{"title":"Paperback","offer_id":44063489458431,"sku":"9780906212950","price":9.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_018b2ef7-718a-4860-bfa3-f9941b7abdf1.jpg?v=1685389859","url":"https:\/\/www.whiterainbookhouse.com\/products\/cross-numbers-john-parker-9780906212950","provider":"WR Book House","version":"1.0","type":"link"}