32×54×43用简便方法怎么计算?
2个回答
2016-04-07
展开全部
32×54×43
=32×(50+4)×43
=(32×50+32×4)×43
=(1600+128)×(40+3)
=1600×40+1600×3+128×40+128×3
=64000+4800+5120+384
=68800+5120+384
=73920+384
=74304
=32×(50+4)×43
=(32×50+32×4)×43
=(1600+128)×(40+3)
=1600×40+1600×3+128×40+128×3
=64000+4800+5120+384
=68800+5120+384
=73920+384
=74304
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