Roman Numerals Online Basketball Game - math game for 1st, 2nd, 3rd, 4th, 5th, 6th grades. Online basketball games free, Basketball Games For Kids Online, online basketball video games. Learn how to find the equivalence of Roman in Arabic numerals by playing this game. Counting in Roman numerals requires students to understand the logic behind each number. Once you know this, it is easy to have so much fun playing.