{"product_id":"상위권연산-960-p4","title":"Sangwigwon Yeonsan 960 P4","description":"Description\n\nSangwigwon Yeonsan 960 approaches number and calculation learning—the starting point of mathematics and an essential tool across all math domains—with a new philosophy and methodology. Through task-based number and calculation problems combined with diverse situations, processes, and approaches, this workbook not only completes calculation skills but also builds higher-level mathematical thinking.\n\nSangwigwon Yeonsan 960 will be a great strength for children who get bored or tired of simple, repetitive calculation drills; children who need creative, higher-level calculation practice beyond the basics; children working on advanced application of school curriculum; children who need to think through math rather than solve problems mechanically; children who want to build a solid foundation rather than rush into excessive advanced learning; children preparing step by step from an early age for gifted education programs, olympiads, or specialized middle\/high schools; and any child who loves math and wants to excel at it.\n\nTable of Contents (121-160)\nIssue 1: Numbers up to 50\nIssue 2: Numbers up to 19 (1)\nIssue 3: Numbers up to 19 (2)\nIssue 4: Numbers up to 50, Numbers and Problem Solving\n\nAnswer Key Included","brand":"IBOOKPARK","offers":[{"title":"Default Title","offer_id":49623790452964,"sku":"1387932229","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/9788\/6692\/files\/9791134700126-p4.jpg?v=1786422076","url":"https:\/\/ibookpark.com\/en\/products\/%ec%83%81%ec%9c%84%ea%b6%8c%ec%97%b0%ec%82%b0-960-p4","provider":"IBOOKPARK","version":"1.0","type":"link"}