ldcf.net
当前位置:首页 >> 250x17x4用脱式计算怎么算 >>

250x17x4用脱式计算怎么算

解:原式=508-120×4-3×4 =508-480-12 =28-12 =16

0.25x1.38x4 =(0.25x4)x1.38 =1x1.38 =1.38

5.4/[(0.3+0.6)x0.5] =5.4/(0.9x0.5) =5.4/0.9/0.5 =6/0.5 =12

0

5.73x4.27+5.73x5.73 =5.73x(4.27+5.73) =5.73x10 =57.3

2.5x45x0.4 =2.5x0.4x45 =1x45 =45

4.23x4.6+4.6x5.77 =4.6x(4.23+5.77) =4.6x10 =46 望采纳,谢谢!

(173-164)X4 =9X4 =36, 以上就是脱式计算,

50-50x4÷8 =50-200÷8 =50-25 =25

0.98x4.5 =(1-0.02)*4.5 =1*4.5-0.02*4.5 =4.5-0.09 =4.41

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