Riddle of 24 - It's a simple but challenging math game: Use the 4 basic arithmetic operations and connection to get a formula equals to 24:
For example,giving the 4 random digits - 3,8,5,4, The formula can be: 3*8*(5-4), 4*(8+3-5), (5-3)*(4+8) or 58-34
There are 2 play modes for the game.
1.Time Limited: Challenge your brain speed.
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