These sometimes can be found on really old alarm clocks, but [Markus] was a lucky-duck and managed to acquire this large 8-digit display which previously made its home in a railroad station.

Find number 43, then count forwards 8 ones to get 51. Back to top Subtracting a one-digit number from a two-digit number To subtract a one-digit number from a two-digit number, you also start with ...