Correct spelling, explanation: the full form approximately derives from the adjective approximate. As we can see, the other form is spelled with a double -p letter. That’s why the adverb must be written the same way.
Definition of approx.:
adverb, close to a particular number
I want to reduce my weight by approx. 10%.
It’ll take me approx. two hours to finish this project.
Incorrect spelling, explanation: this mistake may be made because the double consonant is not recognizable in speech, so it can seem confusing. The word
aprox. can’t exist since its root must be spelled with two -p. We have to remember to always look at the basic word.
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