Home Misspellings How to spell adition? Adition or addition? Which one is correct? by hersey January 10, 2017 Reading Time: 0min, 7sc + - 0 Adition or Addition Which one is correct? You can find the answer below. Incorrect Adition Correct Addition You can find more information about Addition word here. Rate this post Correct spelling of aditionHow do you spell adition?