
0.64*25*7.8+2.2
2016-07-20 · 知道合伙人教育行家
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0.64*25*7.8+2.2
=0.08*(4*25)*7.8+2.2
=0.08*100*7.8+2.2
=8*7.8+2.2
=62.4+2.2
=64.6
=0.08*(4*25)*7.8+2.2
=0.08*100*7.8+2.2
=8*7.8+2.2
=62.4+2.2
=64.6
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