本帖最後由 shiroikoala 於 2011-12-6 08:44 PM 編輯
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8 v$ F y$ }; h2 c/ gI once think it should be 1, but then I've changed my mind to 9 bcoz:
8 V% ?+ p- Y, Z* [! n公仔箱論壇公仔箱論壇& Q& z3 h/ \; r c3 b
6÷2(1+2) = ? implies:公仔箱論壇+ U' E o1 y Q" s
' N9 s) U8 U0 d5 {2 r9 y4 x; k. M- I1 _
6÷2 x 3=? implies
$ ]# A8 m- B0 v9 d2 e6 l$ Z5 J, `0 @/ E+ b0 ^8 x. Z
3 x 3 = ? implies* x. Y1 d1 U3 ?2 Q% H6 J: D) k' C
y/ I9 v! c8 | \& C! u! k
= 9' l6 F9 C* A0 j8 R- r2 a+ k( H: c. o
3 ^" Y4 e: I3 g4 X: f7 a
If the question is written as 6÷[2(1+2)] , then the answer would be 1 |