How To Write Large Numbers In A Paper. Four hundred fifty people attended the birthday party. Because apa style is used for scientific and clinical writing, the rules for numbers being presented consistently is important to that data and its analysis.
If you were using the exact number, you would write it out, of course. In general, apa style recommends using words to express numbers below 10, and using numerals when expressing numbers 10 and above. In our example, this would be 8 + 1 + 2.
