
7.93+0.793×90怎样简便运算
1个回答
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7.93*0.82+0.28*7.93
=7.93*(0.82+0.28)
=7.93*1.1
=7.93*(1+0.1)
=7.93*1+7.93*0.1
=7.93+0.793
=8.723
=7.93*(0.82+0.28)
=7.93*1.1
=7.93*(1+0.1)
=7.93*1+7.93*0.1
=7.93+0.793
=8.723
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