NCERT Figure it Out 2 - Products - A Story of Numbers
Question: Without converting to Hindu numerals first if you can, find: V x L, L x D, V x D, VII x IX.
Answer: V x L = CCL; L x D = M twenty-five times; V x D = MMD; VII x IX = LXIII.
Full step-by-step NCERT solution with diagrams on Something by Zero.