本帖最後由 shiroikoala 於 2011-12-6 08:44 PM 編輯
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8 P2 k, x8 |4 f. |" J; g+ G* ^2 GI once think it should be 1, but then I've changed my mind to 9 bcoz:
# g1 G; \* i8 f# a4 W% Y- y4 |/ v) `! m f6 b" {
6÷2(1+2) = ? implies:
! C3 y; q }7 @. w& A% D6 i% v5.39.217.76
8 h6 l0 }9 k% r6 ]& \2 K9 ^( b9 J5.39.217.766÷2 x 3=? implies
- F/ d9 M% \1 [$ j* t) P5.39.217.76+ M! y7 R) T/ h! t" @
3 x 3 = ? implies
# O5 f5 E, z8 C! }5.39.217.76* }! ?) V: d7 C# N! \
= 9
0 q% U: O0 @3 B1 b/ }& v, X9 `# G6 ]! ~4 \- r, P6 @3 t# z
If the question is written as 6÷[2(1+2)] , then the answer would be 1 |