I saw this on Facebook:
Yes, I know, there are different formulas that work. So suppose we want ” 3 + 5″ to “equal” -28. What we want is the first digests (the constant coefficient upwards) to be the sum of the numbers, and the “leading” digits to be “a-b” with a correct sign; that is: a “+” b = (a-b, a+b) with the comma removed so as to make a single integer (the inputs are integers).
So the “cute” problem: get a spread sheet to do this.
To get full credit: you must get the correct answer for both a greater than b and a “less than” b.