3,3,3,9怎樣合24?

2006-11-16 5:27 am
3,3,3,9

回答 (2)

2006-11-16 8:09 am
9x3-{開方(3+3)}
=27-3
=24
2006-11-16 5:38 am
(9-3÷3)×3


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