
0.65X32.5+6.7.X6.75简便计算?
1个回答
展开全部
=0.65*10*3.25+(6.5+0.2)*6.75
=6.5*3.25+6.5*6.75+0.2*6.75
=6.5*(3.25+6.75)+1.35
=6.5*10+1.35
=65+1.35
=66.35
=6.5*3.25+6.5*6.75+0.2*6.75
=6.5*(3.25+6.75)+1.35
=6.5*10+1.35
=65+1.35
=66.35
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