{"product_id":"9784753934881","title":"中学受験算数　計算の工夫と暗算術を究める　増補改訂４版","description":"２ケタ×２ケタの新しい暗算術「ニコニコ法」、分数の割り算をひっくり返さずに速く解ける「高速××法」など、誰よりも計算に強くなる方法がいっぱい。","brand":"エール出版社","offers":[{"title":"Default Title","offer_id":48481533952304,"sku":"","price":1650.0,"currency_code":"JPY","in_stock":true}],"url":"https:\/\/www.maruzenjunkudo.co.jp\/products\/9784753934881","provider":"丸善ジュンク堂書店ネットストア","version":"1.0","type":"link"}