Using the following rules only, Express the numbers from 50 to 100 using only digits in the number. Concise with minimum number of characters is preferred.
No concatenation of numbers allowed.
Only, plus, minus, division, multiplication(use dot), exponentiation, factorial, brackets where needed are allowed.
No multiple factorials and exponents allowed.
Vinculum(compliments of 10) allowed if you prefer. For example, 3 underlined is 7...9 underlined is 1.
See examples..in the picture..in red...blue ..normal way
I have filled in some..not necessarily optimum.