Five Fives
From charlesreid1
Five Fives
Extending this idea, we can take a crack at the game of Five Fives.
$ 5 = \dfrac{ \sqrt{5}^{\sqrt{5}} \sqrt{5} }{ 5 \times 5 } $
$ 6 = 5 + \dfrac{5 \times 5}{5 \times 5} $
$ 7 = 5 + \dfrac{5}{5} + \dfrac{5}{5} $
$ 8 = 5 + \dfrac{5+5+5}{5} $
$ 9 = \sqrt{5} \sqrt{5} + 5 - \dfrac{5}{5} $
$ 10 = \dfrac{5 \times 5 + 5 \times 5}{5} $
$ 11 = \dfrac{5 \times 5 + 5}{5} + 5 $
$ 12 = 5 + 5 + \dfrac{5+5}{5} $
$ 13 = 5 + 5 + 5 - \dfrac{ \ln{5} }{ \ln{\sqrt{5}} } $
$ 14 = 5 + 5 + 5 - \dfrac{5}{5} $
$ 15 = \left( \dfrac{5+5}{5} \right) \times 5 + 5 $
$ 16 = 5 + 5 + 5 + \dfrac{5}{5} $
$ 17 = 5 + 5 + 5 + \dfrac{ \ln{5} }{ \ln{\sqrt{5}} } $
$ 18 = 5 \times 5 - 5 - \dfrac{\ln{5}}{\ln{\sqrt{5}}} $
$ 19 = 5 \times 5 - 5 - \dfrac{5}{5} $
$ 20 = \dfrac{5}{5} \left( 5 \times 5 - 5 \right) $