Guys does 9+10= 21
explain please

9 + 10 = 19

Explanation:

So uh my brother pulls this stuff on me saying 9 + 10 = 21 because if you add 9 + 10 you get 19. Then you add 2 because you have 2 numbers. So 21. I don't know why people do this, it's funny but like, why.

I hope this helped!

Yes.

Explanation:

Its 21 because a genius said it was.

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