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125×56脱式计算%

125×56脱式计算- 125×56 =125*8*7 =1000*7 =7000

125x56 =125×8×7 =1000×7 =7000

125x64 =125x8x8 =1000x8 =8000

325138+125=325263

125×46 =125×(40+6) =125×40+125×6 =5000+750 =5750

=125×8×11 =1000×11 =11000

如图

125×56×8 =(125×8)×56 =1000×56 =560000

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

8x28x125 解:脱式简便运算 =8x125x28 =1000x28 =28000 祝学习进步。

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