Four Fours/100/Solutions/4

Puzzle: Four Fours: $100$

Using exactly $4$ instances of the number $4$, the task is to write an expression for $100$, using whatever arithmetical operations you consider necessary.

Solution

$100 = 4! \times 4 + \sqrt 4 + \sqrt 4$

Sources

• 1964: L.H. Clarke: Fun with Figures ... (previous): Solutions: $(46)$