1楼:匿名用户
=41.2×
dao10-41.2×版1.9+11×9.25+53.7×1.9=412-(53.7-41.2)×
权1.9+92.5+9.25+12.5×2-12.5×0.1=412+92.5+9.25-1.25
=537.5
2楼:匿名用户
41.2×8.1+
11×9.25+537×0.19
=41.2×(10-1.9)+(10+专1)×9.25+537×0.19
=412-
属41.2×1.9+92.
5+9.25+53.7×1.
9=412+92.5+9.25+12.
5×(2-0.1)=412+92.5+9.
25+25-1.25=437+100.5
=537.5
3楼:瞎猫撞上死耗子
41.2×8.1+11×9.25+537×0.19
=537.5
4楼:淡月_微云
先乘后加就是简单算法。。
41.2×8.1+11×9.25+537×0.19如何简便计算
5楼:匿名用户
41.2*8.1+11*9.
25+537*0.19=41.2*8.
1+53.7*1.9+11*9.
25=41.2*(10-1.9)+53.
7*1.9+11*9.25=41.
2*10-(41.2-53.7)*1.
9+11*9.25=412+12.5*1.
9+11*9.25=412+(1.1+0.
8)*12.5+1.1*92.
5=412+10+(12.5+92.5)*1.
1=422+(100+5)*1.1
=422+110+5.5
=537.5