{"product_id":"crossmatics-challenging-collection-of-cross-number-puzzles-grades-7-12","title":"Crossmatics: Challenging Collection of Cross Number Puzzles, Grades 7-12","description":"Cross-number puzzles are ideal activities for reinforcing basic mathematical concepts in the classroom--especially with gifted students and those who work well on their own. There are 45 cross-number puzzles in this Crossmatics. Each puzzle includes a crosswork-type grid and a series of descriptions for across and down positions. A typical description reads, \"Eight times 9-across\" or \"Square of 10-down\". The answers students write in the grid are numbers--not words. Compared to traditional math exercises, cross-number puzzles challenge students to apply higher-level thinking skills. As students solve such problems, they may realized facts about the four operations that were never apparent to them before. Crossmatics includes a section on problem-solving strategies and tips on how to solve the puzzles in the book. The cross-number puzzles in Crossmatics are arranged according to three \"challenge\" levels. Challenge, Super Challenge, and Monster Challenge. Students can challenge themselves to complete increasingly difficult puzzles--or challenge their classmates. An extension activity also provides suggestions for how students can create cross-number puzzles of their own. By Dale Seymour Publications. By Alan Dudley. 1990\u003cbr\u003eASIN: 0866515046\u003cbr\u003eVSKU: BVV.0866515046.VG\u003cbr\u003eCondition: Very Good\u003cbr\u003eAuthor\/Artist:Alan Dudley\u003cbr\u003eBinding: Paperback\u003cbr\u003e\u003cb\u003eNote:\u003c\/b\u003e Any images shown are stock photographs and product may differ from what is shown.  \u003cbr\u003e\u003cb\u003eCondition Notes\u003c\/b\u003e: Book has little sign of wear or use  \u003cbr\u003e","brand":"Blue Vase Books","offers":[{"title":"Default Title","offer_id":43178324557885,"sku":"BVV.0866515046.VG","price":19.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/4225\/9261\/files\/0866515046-0.jpg?v=1778707891","url":"https:\/\/www.bluevasebooks.com\/products\/crossmatics-challenging-collection-of-cross-number-puzzles-grades-7-12","provider":"Blue Vase Books","version":"1.0","type":"link"}