250+300+280+320+360+300+381 ?
2个回答
展开全部
250+300+280+320+360+300+381
=550+280+320+360+300+381
=830+320+360+300+381
=1150+360+300+381
=1510+300+381
=1810+381
=2191
=550+280+320+360+300+381
=830+320+360+300+381
=1150+360+300+381
=1510+300+381
=1810+381
=2191
更多追问追答
追问
2191/7 =?
追答
2191/7 =313
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