{"product_id":"9780618153213","title":"Roman Numerals I to MM: Liber De Difficillimo Computando Numerum","description":"\u003cp\u003eWith a farm of pigs as his abacus, Arthur Geisert uses elements of a search and count game to bring Roman numerals to life in this unintimidating math-concept book. First, the seven Roman numerals are equated with the correct number of piglets. Then the reader may practice counting other items—hot-air balloons, gopher holes, and more—as the remarkable adventure unfolds. (And yes, there are one thousand pigs in the etching for M!)\u003c\/p\u003e","brand":"Houghton Mifflin Harcourt","offers":[{"title":"Default Title","offer_id":47027307315440,"sku":"9780618153213","price":6.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9780618153213_p0.jpg?v=1763600262","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9780618153213","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}