ldcf.net
当前位置:首页 >> 5.8*9.9+0.58 怎么简便 >>

5.8*9.9+0.58 怎么简便

=5.8×9.9+5.8×0.1 =5.8×(9.9+0.1) =5.8×10 =58

=5.8×9.9+5.8×0.1 =5.8x(9.9+0.1) =5.8X10 =58

5.8*1.9+5.8*1.9 =5.8*1.9*2 =5.8*3.8 =(6-0.2)*3.8 =6*3.8-0.2*3.8 =22.8-0.76 =22.04

=5.8×9+5.8×1 =5.8×(9+1) =5.8×10 =58

5.8×1.9+58×0.19,要用简便。 解:根据提取公因式的简便方法, 原式=5.8x1.9+5.8x1.9 =5.8x2x1.9 =11.6x(2-0.1) =11.6x2-11.6x0.1 =23.2-1.16 =22.04

5.8*9.9 =5.8*(10-0.1) =5.8*10-5.8*0.1 =58-0.58 =57.42

5.8x99.9 =5.8x(100-0.1) =5.8x100-0.58 =580-0.58 =579.42

3.8×0.64+0.62×6.4 =0.38×6.4+0.62×6.4 =(0.38+0.62)×6.4 =1×6.4 =6.4

5.8ⅹ9.8÷0.58x2 =5.8÷0.58ⅹ9.8x2 =10x19.6 =196 希望能帮到你

5.8X(99十9)的简便方法 =5.8x99+5.8x9 =5.8x100-5.8+5.8x10-5.8 =580+58-5.8x2 =639-11.6 =627.4

网站首页 | 网站地图
All rights reserved Powered by www.ldcf.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com