Rules for Writing Numbers in Words on a Check The National Credit Union Administration tells consumers to use words for dollars and fractions out of 100 for cents.

You can write Fractions in Word using AutoCorrect, by means of symbols or using the Equation Mode. We show you how to do it in Windows & Mac.

1. Spell out numbers less than 10; use figures for numbers 10 and higher (except in scientific and technical writing, where all numbers may be written as figures).

Here’s a great question I got recently from a reader named David: “When it comes to numbers, I have always heard one through nine are to be spelled out and then 10 and on are to be numerals.