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**Answered By:** Katie Hutchison Last Updated: Aug 24, 2016 Views: 66

**Answered By:**Katie Hutchison

**In APA format...**

**Use numerals to express:**

a. numbers 10 and above

examples: 12 years old, the 57th trial, 12 cm wide

b. numbers that precede a unit of measurement

examples: 5-mg dose, 36.3 mm

c. numbers that represent statistical or mathematical functions, fractional or decimal quantities, percentages, and ratios

examples: multipled by 5, .33 of the..., more than 5% of the sample..., a ratio of 15:1

d. numbers that represent time, dates, ages, scores, points on a scale, exact sums of money and numerals

examples: 1 hr 34 min., at 3:45 am, 2-year olds, score 5 on a 12 point scale

**Use numbers expressed as words:**

a. when the number begins a sentence, title, or heading

examples: Forty-eight percent of the sample..., Twelve students improved...

b. common fractions

examples: one fifth of the class..., two-thirds majority

c. universally accepted language

examples: the Twelve Apostles, Five Pillars of Islam

For more information, see the *Publication Manual of the American Psychological Association*.