5.5*17.3+6.7*5.5 1.5*105 9.07-22.78除以3.4 3.8+4.92+2.1+4.2

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/02 19:48:19
5.5*17.3+6.7*5.5 1.5*105 9.07-22.78除以3.4 3.8+4.92+2.1+4.2

5.5*17.3+6.7*5.5 1.5*105 9.07-22.78除以3.4 3.8+4.92+2.1+4.2
5.5*17.3+6.7*5.5 1.5*105 9.07-22.78除以3.4 3.8+4.92+2.1+4.2

5.5*17.3+6.7*5.5 1.5*105 9.07-22.78除以3.4 3.8+4.92+2.1+4.2
5.5*17.3+6.7*5.5=5.5*(17.3+6.7)=5.5*24=132 1.5*105 =1.5*(100+5)=1.5*100+1.5*5=150+7.5=157.5 9.07-22.78除以3.4 =9.07-6.7=2.37 3.8+4.92+2.1+4.2 =(3.8+4.2)+(4.92+2.1)=8+7.02=15.02