The Hardest Games of 24

In elementary school, my class would play a game called 24. The teacher would hold up a card that had 4 numbers on it. Using each number on the card exactly once and only $+,-,\div,\times$ for operations, the goal was to make the number 24. And do it faster than all the other kids, obviously.

$2((2 \times 4)+4)=24$

A couple days ago, one of my friends gave us a particularly good one. So I thought I’d share the 5 hardest 24 puzzles! Some other people have already gone through the trouble of figuring out which are the most difficult. Enjoy!

#5: 1,3,4,6

Solved rate: 16.3%

#4: 3,6,6,11

Solved rate: 15.6%

#3: 3,5,7,13

Solved rate: 13.5%

#2: 2,5,5,10

Solved rate: 12.4%

#1: 2,3,5,12

Solved rate: 11.7%