{"product_id":"math-brain-puzzles-ted-warner-9781981029969","title":"Math Brain Puzzles: Mathrax Puzzles - 200 Math Puzzles With Answers","description":"\u003cp\u003e\u003cb\u003eMathrax\u003c\/b\u003e consists of a square grid. The goal is to fill in each cell with numbers from 1 to N, where N is the size of the puzzle's side. No number may appear twice in any row or column. Circles with additional conditions may be situated on intersections of lines inside the grid; a circle may contain: - A number and a sign of mathematical operation (addition, subtraction, multiplication, division) - a number is a result of an operation execution with numbers in diagonally adjacent cells. - A letter \"E\" (\"even\") - all numbers in four cells are even. - A letter \"O\" (\"odd\") - all numbers in four cells are odd.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Ted Warner\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1981029966\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781981029969\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Independently Published\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 05\/06\/2018\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 130\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.44lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.00h x 6.00w x 0.31d","brand":"Ted Warner","offers":[{"title":"Paperback","offer_id":46721363247359,"sku":"9781981029969","price":10.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_a0c173d1-4adf-4d3f-987c-4b6caa04605d.jpg?v=1742752638","url":"https:\/\/www.whiterainbookhouse.com\/products\/math-brain-puzzles-ted-warner-9781981029969","provider":"WR Book House","version":"1.0","type":"link"}