{"product_id":"roman-numerals","title":"Roman Numerals","description":"\u003cp\u003eAlthough we usually use Arabic numerals, Roman numerals are still often used on clocks, buildings, pages of books, and elsewhere.\u003c\/p\u003e\n\u003cp\u003eThis introduction to Roman numerals shows how the Romans developed their system of numbers and how Roman numerals are written–from the simple I to a discussion of the historic relationship between V and X; to the more difficult subtraction idea in the IV, which early Romans wrote as IIII. Using coins, paper, cardboard, scissors, and a pencil, the young mathematician will become involved in learning the principles behind Roman numerals.\u003c\/p\u003e\n\u003cp\u003eByron Barton, the illustrator, has created an amusing Roman stonecutter who carefully clarifies the text.\u003c\/p\u003e","brand":"Polka Dot Door Books","offers":[{"title":"Default Title","offer_id":53089838825786,"sku":null,"price":14.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0937\/8699\/7050\/files\/20260127_4166_square_originalbg.jpg?v=1772055258","url":"https:\/\/polkadotdoorbooks.com\/products\/roman-numerals","provider":"Polka Dot Door Books","version":"1.0","type":"link"}