I randomly came across this picture while browsing the internet;
And I wanted to test the math out. Would it work for numbers that didn’t come up two two-digit answers? Or numbers less than 25, or greater than 50?
Yes, yes it would. The only extra step is that you have to add the last digit from the first answer (x – 25 = first answer) to the first digit of the second answer (50 – x = y, y * y = second answer) if the second answer has three digits.