Subtract vs Substract – Which is Correct? - Two Minute English “Substract” is actually a common mistake and is not recognized in English dictionaries When you subtract, you take one number away from another For example, if you have 10 apples and you give away 3, you subtract 3 from 10, leaving you with 7 apples
Is substract (versus subtract) a proper word? Though the obsolete word "substract" did exist, any occurrence you see these days is most likely just a common mistake, formed by analogy either with "abstract" or with other languages whose corresponding words do have two ‘s’s
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Subtract or Substract - Which is Correct? - IELTS Lounge On the other hand, “substract” is an incorrect spelling It may sound similar, but it’s a common mistake that many people make The addition of an extra “s” where it doesn’t belong can cause confusion and may even distract your readers from the main message you are trying to convey
‘Subtract subtraction’ vs. ‘substract substraction’ in English Long story short, the correct forms are “subtract” and “subtraction” (without “s”) The reason why so many English learners make the mistake is probably that there is a corresponding word in many languages that does contain an “s”, e g soustraire in French or sustraer in Spanish
substract - Wiktionary, the free dictionary substract (third-person singular simple present substracts, present participle substracting, simple past and past participle substracted) (obsolete or nonstandard) To subtract