用简便计算下面两题2.9*0.45+0.29*4.2+0.029*133.886*9.6+0.96*61.6

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/12 01:55:13
用简便计算下面两题2.9*0.45+0.29*4.2+0.029*133.886*9.6+0.96*61.6

用简便计算下面两题2.9*0.45+0.29*4.2+0.029*133.886*9.6+0.96*61.6
用简便计算下面两题
2.9*0.45+0.29*4.2+0.029*13
3.886*9.6+0.96*61.6

用简便计算下面两题2.9*0.45+0.29*4.2+0.029*133.886*9.6+0.96*61.6
1、原式=2.9*0.45+2.9*0.42+2.9*0.13=2.9*(0.45+0.42+0.13)=2.9*1=2.9
2、原式=3.886*9.6+6.16*9.6=(3.886+6.16)*9.6=96.4416

2.9*0.45+2.9*0.42+2.9*0.13
2.9*(0.45+0.42+0.13)
2.9*1
2.9
3.886*9.6+9.6*6.16
9.6*(3.886+6.16)
9.6*10.046
96.4416