72*36+28*50+14*72的简便计算方法
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72*36+28*50+14*72=72x36+72x14+50x14
咨询记录 · 回答于2023-03-20
72*36+28*50+14*72的简便计算方法
72*36+28*50+14*72=72x36+72x14+50x14
72*36+28*50+14*72=72x36+72x14+50x14=72x(36+14)+50x14
72*36+28*50+14*72=72x36+72x14+50x14=72x(36+14)+50x14=72x50+50x14=50x(72+14)=50x86=4300
72*36+28*50+14*72=72x36+72x14+50x28=72x(36+14)+50x28=72x50+50x28=50x(72+28)=50x100=5000