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Sunday Afternoon Maths LXVI
Cryptic crossnumber #2Sunday Afternoon Maths LXV
Cryptic crossnumber #1Breaking Chocolate
Square and cube endings
Sunday Afternoon Maths LXIV
Equal lengthsDigitless factor
Backwards fours
Sunday Afternoon Maths LXIII
Is it equilateral?Cube multiples
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Pick a three digit number whose digits are all different.
Sort the digits into ascending and descending order to form two new numbers. Find the difference between these numbers.
Repeat this process until the number stops changing. The final result is today's number.