ldcf.net
当前位置:首页 >> 3.9+0.1%3.9+0.1用简便方法计算怎么计算? >>

3.9+0.1%3.9+0.1用简便方法计算怎么计算?

=(3.9-3.9)+(0.1+0.1) =0+0.2 =0.2

3.9+0.1-3.9+0.1用简便方法怎么算 3.9+0.1-3.9+0.1 =(3.9-3.9)+(0.1+0.1) =0+0.2 =0.2

3.9+0.1-3.9+0.1 =(3.9-3.9)+(0.1+0.1) =0+0.2 =0.2

3.8/3.9+3.9/0.1+0.1/3.9 =1/3.9*(3.8+0.1)+39 =1+39 =40

用简便方法计算9.1×0.8+9.1×0.3.9.0×0.1 9.1×0.8+9.1×0.3.9.0×0.1 =9.1*(0.8+0.2)+9.1*0.1+9*0.1 =9.1+0.91+0.9 =10.91

0.3×9.9+0.03×1 =0.3×(9.9+0.1) =0.3×10 =3

3.9除以1.3乘以0.1 有简便算法吗 =3x0.1 =0.3

你好: 23x0.1+2.3x9.9 =2.3x1+2.3x99 =2.3x(99+1) =2.3X100 =230 如果满意记得采纳! 求好评! (*^__^*) 嘻嘻……

0.3+0.7+1.1+...+9.9 =0.3+(0.3+0.4)+(0.3+2x0.4)+……+(0.3+24x0.4) =0.3x25+0.4x(1+2+……+24) =7.5+0.4x24x(1+24)÷2 =7.5+0.4x300 =7.5+120 =127.5

0.3×1.1+1.9×0.3

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