Growing in Belgium, we learned that our Walloon brethren use septante (70), quatre-vingts (4 * 20 or 80) and nonante (90). We never learned huitante (80), but

Growing in Belgium, we learned that our Walloon brethren use septante (70), quatre-vingts (4 * 20 or 80) and nonante (90). We never learned huitante (80), but here are apparently parts of Belgium that use is. We did learn soixante-dix and quatre-vingts-dix, and were allowed to use both. [0] The Swiss also use huitante, and Nova Scotia uses octante. [0]: Funnily enough, writing American English was a no-go. We had to write centre, colour, metre, lift (elevator), ticket (receipt).