37x111x189用简便方法?
发布网友
发布时间:2024-04-05 21:14
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热心网友
时间:2024-08-02 07:21
37×111×189
=(40-3)×189×111
=(40×189-3×189)×(100+10+1)
=(7560-567)×(100+10+1)
=6993×100+6993×10+6993
=699300+69930+6993
=769230+6993
=776223
热心网友
时间:2024-08-02 07:23
简便运算如下
37×111×189
=37×(100+10+1)×189
=[37×100+37×10+37×1]×189
=(3700+370+37)×189
=4107×189
=776223.
热心网友
时间:2024-08-02 07:22
37×111×189
=37×(100+10+1)×189
=37×100×189+37×10×189+37×189
=3700×189+370×189+37×189
=(699300+69930)+6993
=769230+6993
=76923