Wes Carroll's Puzzler

20: The middle digit [**]

August 28, 2016
Wes Carroll's Puzzler
20: The middle digit [**]
Chapters
Wes Carroll's Puzzler
20: The middle digit [**]
Aug 28, 2016
Wes Carroll
Show Notes
How many three-digit numbers satisfy the property that the middle digit is the average of the first and the last digits? // Spiciness: ** out of ****