Use of numbers in APA style
Answer
We've had a few questions recently on how to write numbers in the main body of your assignments.
According to the APA blog "In general, use numerals to express numbers 10 and above, and use words to express numbers zero through nine."
There will always be exceptions to this rule, so for full details please read https://apastyle.apa.org/style-grammar-guidelines/numbers/numerals