How to spell 4 4 is spelled four in English. Hear it & practice → On a check To write $4.00 on a check, the words line reads: Four and 00/100 Full check-writing guide → Related numbers1 one 10 ten 100 one hundred 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… ← 3All numbers5 →