Four Fours/69
Jump to navigation
Jump to search
Puzzle
Using exactly $4$ instances of the number $4$, the task is to write an expression for $69$, using whatever arithmetical operations you consider necessary.
Solutions
Solution $1$
- $69 = \dfrac {4! + \sqrt 4} {.4} + 4$
Solution $2$
- $69 = \dfrac {4! + 4 - .4} {.4}$
Solution $3$
- $69 = \dfrac {4!} {.4} + \dfrac 4 {. \dot 4}$