1.简便运算 41.2x8.1+11x9.25+53.7x1.9

1.简便运算 41.2x8.1+11x9.25+53.7x1.9
1.简便运算 41.2x8.1+11x9.25+53.7x1.9

1.简便运算 41.2x8.1+11x9.25+53.7x1.9
41.2x8.1+11x9.25+53.7x1.9
=41.2×（8+0.1）+（10+1）×9.25+53.7×（2-0.1）
=329.6+4.12+92.5+9.25+107.4-5.37
=（329.6+107.4）+92.5+（4.12+9.25-5.37）
=437+92.5+8
=437+100.5
=537.5

41.2x8.1+11x9.25+53.7x1.9
=41.2×（8+0.1）+（10+1）×9.25+53.7×（2-0.1）
=329.6+4.12+92.5+9.25+107.4-5.37
=（329.6+107.4）+92.5+（4.12+9.25-5.37）
=437+92.5+8
=437+100.5
=537.5

41.2x8.1+11x9.25+53.7x1.9
=41.2*(10-1.9)+53.7*1.9+92.5+9.25
=412+1.9(53.7-41.2)+101.75
=412+190/8+101.75
=412+23.75+101.75
=412+125.5
=537.5

41.2x8.1+11x9.25+53.7x1.9
=41.2×（8+0.1）+（10+1）×9.25+53.7×（2-0.1）
=329.6+4.12+92.5+9.25+107.4-5.37
=（329.6+107.4）+92.5+（4.12+9.25-5.37）
=437+92.5+8
=437+100.5
=537.5
希望对你有帮助！