191问答库 > 41.2*8.1+11*1.25+53.7*1.9怎样简便计算？

41.28.1+111.25+53.7*1.9怎样简便计算？

2025-01-14 20:33:46

推荐回答（4个）

回答1：

455.8

回答2：

先乘除后加减

回答3：

41.2*8+10*1.25+53.7*2+4.12+1.25-5.37

回答4：

解:41.2X8.1十11.1X1.25十53.7X1.9
=41.2X(10一1.9)十1.25X(11十0.1)
十 53.7X1.9
=41.2X10一41.2X1.9十1.25X11十1.25X0.1
十53.7X1.9
=412十(53.7X1.9一41.2X1.9)十0.125
=412十1.9X(53.7十41.2)十0.125
=412十1.9X94.9十0.125
=412.125十94.9X(2一0.1)
=412.125十189.8一9.49
=601.025一9.49
=591.535