Take any number and rearrange its digits to form another number. Subtract one from the other.
The difference will always be divisible by 9.
Example: 429 - 294 = 135. 135 divided by 9 equals 15.
Another: 2728 - 2287 = 441. 441 divided by 9 equals 49.
Works with any number. ALWAYS. How do they do that?
Via The Futility Closet...............
I wonder if this has anything to do with the Song of the Day?
The difference will always be divisible by 9.
Example: 429 - 294 = 135. 135 divided by 9 equals 15.
Another: 2728 - 2287 = 441. 441 divided by 9 equals 49.
Works with any number. ALWAYS. How do they do that?
Via The Futility Closet...............
I wonder if this has anything to do with the Song of the Day?
