102×33÷66巧算
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102×33÷66巧算102×33÷66巧算102×33÷66巧算102×33÷66=102×(33÷66)=102×0.5=51102*33/33/2=51(100+2)*33/66=50+1102
102×33÷66巧算
102×33÷66巧算
102×33÷66巧算
102×33÷66
=102×(33÷66)
=102×0.5
=51
102*33/33/2=51
(100+2)*33/66=50+1
102X33÷(33×2)=102×(33÷33)÷2=51 不好意思刚写错了
(51+51)×33÷66=51
102x33/66
=3x34x33/2x33
=3x17
=51
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