Mom asks little son what skill he’s the best at and gives him a test.
Mom: Jimmy, what’s the skill you think you are the best at.
Jimmy: Fast calculation, mom!
Mom: Wow, fast calculation? Are you sure about that?
Jimmy: Yes, of course.
Mom: So, now I will give you a test to check how excellent you are! Do you agree?
Jimmy: Okay, I’m ready.
Mom: So, 56 + 28 = ?
Jimmy: Mommy! That’s 21.
Mom: Haha, you are wrong. The answer must be 84.
Jimmy: But I am fast, mommy!