How is it possible that anyone with a working keyboard, two fully functioning hands, and old enough to work a computer/know numbers cannot get this? What is the point of this game?
If you get screwed up once or twice, you're done for. I couldn't quite do it one-handed with the number pad while not looking, but did it with 10 seconds to spare once I looked. Then did it with 13 seconds to spare using the two-handed method and the number keys along the top of the keyboard.
That's about as fast as I could do with the 1 hand numpad. I always mess up somewhere and it throws the timing off.
This was my best time with 1 hand using the numpad: What helped me is to not look at the text box as I'm entering in the numbers (that threw me off), and instead look at the boxes as they get filled with each entered number. Plus, slow down slightly when typing 11, 22, 33, etc. I had a tendency to mess up on those numbers when rushing through it.