一道简算 741-502怎样做简便?〈1〉741-502=741-(500+2)=741-500-2=241-2=239〈2〉741-502=741-(501+1)=741-501-1=240-1=239选1或2
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![一道简算 741-502怎样做简便?〈1〉741-502=741-(500+2)=741-500-2=241-2=239〈2〉741-502=741-(501+1)=741-501-1=240-1=239选1或2](/uploads/image/z/13673158-70-8.jpg?t=%E4%B8%80%E9%81%93%E7%AE%80%E7%AE%97+741-502%E6%80%8E%E6%A0%B7%E5%81%9A%E7%AE%80%E4%BE%BF%3F%E3%80%881%E3%80%89741-502%3D741-%EF%BC%88500%2B2%EF%BC%89%3D741-500-2%3D241-2%3D239%E3%80%882%E3%80%89741-502%3D741-%EF%BC%88501%2B1%EF%BC%89%3D741-501-1%3D240-1%3D239%E9%80%891%E6%88%962)
一道简算 741-502怎样做简便?〈1〉741-502=741-(500+2)=741-500-2=241-2=239〈2〉741-502=741-(501+1)=741-501-1=240-1=239选1或2
一道简算
741-502怎样做简便?
〈1〉741-502
=741-(500+2)
=741-500-2
=241-2
=239
〈2〉741-502
=741-(501+1)
=741-501-1
=240-1
=239
选1或2
一道简算 741-502怎样做简便?〈1〉741-502=741-(500+2)=741-500-2=241-2=239〈2〉741-502=741-(501+1)=741-501-1=240-1=239选1或2
其实俩都挺好
能想出第二种说明你很聪明
要我就选2
这叫敢于创新
呵呵
都挺简单
1是正常人的思维
2简单
1
2