How to spell 50 50 is spelled fifty in English. Hear it & practice → On a check To write $50.00 on a check, the words line reads: Fifty and 00/100 Full check-writing guide → Related numbers5 five 60 sixty 1 one 10 ten 100 one hundred 1,000 one thousand Spelling guidesMoney amountsHow to write dollars in words.Writing a checkStep-by-step for US checks.Ordinals (1st, 2nd…)First, second, third, and beyond.All guidesDates, phones, fractions, decimals… ← 49All numbers51 →