{"product_id":"cross-sum-volume-one-9781963597066","title":"Cross Sum Volume One","description":"\u003cp\u003eEvery puzzle is unique, and so is its level of challenge. To help you gauge the complexity of each, we use a star rating system.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e★\u003c\/p\u003e\u003cp\u003eFor those who are just getting started - gentle and welcoming. Remember the order of operations: \u003c\/p\u003e\u003cp\u003e 1. Multiplication and division from left to right\u003c\/p\u003e\u003cp\u003e 2. Addition and subtraction from left to right.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e★★\u003c\/p\u003e\u003cp\u003eIntermediate level - For the seasoned mathematician who is ready for a robust challenge. Get ready for fractions.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e★★★\u003c\/p\u003e\u003cp\u003eWhere things get a tad more intricate - the big leagues! Puzzles that demand attention and skill. We've added negative numbers to these.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eNo matter the level of your math skills, this volume promises an atmosphere of mental stimulation and challenge. Try not to peek, but if you must, all solutions start after puzzle #180.\u003c\/p\u003e\u003cbr\u003e","brand":"Great Puzzle Books","offers":[{"title":"Default Title","offer_id":51811728851218,"sku":"9781963597066","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_42275a0a-a482-4fdb-beff-5fd9e92284f6.jpg?v=1766489179","url":"https:\/\/surprise-castle.myshopify.com\/products\/cross-sum-volume-one-9781963597066","provider":"Surprise Castle","version":"1.0","type":"link"}