Classical math game, use all 4 numbers and + - × / to make 24!

Two rules: (1) Don't cheat. (2) Click "DONE" when you want to quit.

Here is why (hint, for science). 1278051 puzzles have been solved since 2012-10-01.

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Top 20 players of the month (Beat the clock)
Rank Score Player
1 8703 Cornell_Babe_Ruth
2 5913 Byulyi
3 4784 Cornell_Big_Red_V3
4 4598 hitu
5 3432 Cornell_Big_Red_V2
6 3394 Raz
7 2985 Cornell_Big_Red
8 2669 shawn
9 2411 hitu
10 2251 Gus
11 2219 Timothy Yau
12 2147 Raz
13 2027 Gus
14 1945 Raz
15 1937 zongbo-sf
16 1925 Gus
17 1631 Raz
18 1617 Gus
19 1517 Gus
20 1489 Gus





    

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