72*125的简便算法和92*36-16*92的简便算法简便算法,清楚清晰明白
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![72*125的简便算法和92*36-16*92的简便算法简便算法,清楚清晰明白](/uploads/image/z/760768-16-8.jpg?t=72%2A125%E7%9A%84%E7%AE%80%E4%BE%BF%E7%AE%97%E6%B3%95%E5%92%8C92%2A36-16%2A92%E7%9A%84%E7%AE%80%E4%BE%BF%E7%AE%97%E6%B3%95%E7%AE%80%E4%BE%BF%E7%AE%97%E6%B3%95%2C%E6%B8%85%E6%A5%9A%E6%B8%85%E6%99%B0%E6%98%8E%E7%99%BD)
72*125的简便算法和92*36-16*92的简便算法简便算法,清楚清晰明白
72*125的简便算法和92*36-16*92的简便算法
简便算法,清楚清晰明白
72*125的简便算法和92*36-16*92的简便算法简便算法,清楚清晰明白
72×125
=9×(8*125)
=9×1000
=9000
92×36-16*92
=92×(36-16)
=92×20
=920×2
=1840
72*125=125*(8*9)=1000*9=9000
92*36-16*92=92*(36-16)=92*20=1840
就是这种方法啦
72*(1/8)*1000=9*1000=9000
92*(36-16)=92*20=1840
72*125
=9*(8*125)
=9*1000
=9000
92*36-16*92
=92*(36-16)
=92*20
=920*2
=1840