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125x25x64简便计算

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原数等于 25×4×125×8×2 =100×1000×2 =200000 ~回答完毕~ ~结果仅供参考~ ~\(^o^)/~祝学习进步~~~

采纳详解

原式 =25x5x(4x2x8)x125 =(25x4)x(5x2)x(8x125) =100x10x1000 =1000x1000 =1000000 供参考。

125x25x8x8=(125x8)x(25x8)=1200 [49十(31X56)]除以7 =49÷7+31X56÷7 =7+31X8 =7+248 =255

=(25×8)×(125×8) =200×1000 =200000

=25x(4x4x4)x25x5=(25x4)X(4x25)X(4x5)=200000

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