Four Fours/56
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Puzzle
Using exactly $4$ instances of the number $4$, the task is to write an expression for $56$, using whatever arithmetical operations you consider necessary.
Solutions
Solution $1$
- $56 = 4! + 4! + 4 + 4$
Solution $2$
- $56 = \dfrac {4! - .4 \times 4} {.4}$
Solution $3$
- $56 = \dfrac {4!} {. \dot 4} + 4 - \sqrt 4$
Solution $4$
- $56 = 44 + \dfrac {4!} {\sqrt 4}$