First few moments: Oh, cute, typing down in order
Second level: Oh-HO having to type words as well, clever, I like it
Last level: AHHHHHHHHHHHHHHHHHHHHHHHH!
I made the mistake of thinking, oh, this is gonna be easy. Then once I realized there was running away from the numbers so you can get close enough to the right one to count, properly, then having to take my hands off the arrow keys (or type one-handed) and then the audacity to give me MATH?! Well played!