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36X25X6X5X22巧算

先要知道;25x4=100 125x8=1000 25x3x4 =100x3=300 25x6x2=25x3x2x2=25x3x4=100x3=300 36x25=9x4x25=9x100=900 25x13x125x32=13x25x125x8x4=13x25x4x125x8=13x100x1000=1300000 125x25x32=125x25x8x4=125x8x25x4=1000x100=10...

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