Question: 28 + 47 (show your process)
I pour a cup of coffee, drink half, add 50 to 28 and get 78.
Then I have another third of a cup of coffee, subtract 3 from 78, because 47 is 3 less than 50, and get 75, then I finish the coffee, wondering how much I had of a third of a half, but feel satisfied that I completed a whole cup of coffee, which leaves me with zero coffee.
Then I get more coffee. And then my cup is 100% coffee and that makes me smile.
Otherwise, I'd add 7 to the 8, get 15, carry the one and make the two a three, add it to the four and get seven.
Then I think I should have written it all down because now I have a 7 and a 15 and I'm carrying a 3 that is really a 2,
Then I think I'm 9 years to 75, and doggone it, where the heck did I put that cup of coffee!?!?!?