ldcf.net
当前位置:首页 >> 脱式计算,能简算的要简算 >>

脱式计算,能简算的要简算

650÷25+26×99 =26+26x99 =26x(1+99) =26x100 =2600 如有帮助请采纳, 如对本题有疑问可追问,Good luck!

3.6×1.02 =3.6×1+3.6×0.02 =3.6+0.072 =3.672 乘法分配率

0.385+0.853 =0.385+1-0.147 =1.385-0.15+0.003 =1.235+0.003 =1.238

0.4×125×25×0.8 =(0.4×25)×(125×0.8) =10×100=1000 1.25×(8+10) =1.25×8+1.25×10 =10+12.5=22.5 9123-(123+8.8) =9123-123-8.8 =9000-8.8 =8991.2 1.24×8.3+8.3×1.76 =8.3×(1.24+1.76) =8.3×3=24.9 9999×1001 =9999×(1000+1) =9999×...

请采纳

3/4 +1/6-2/3 =9/12+2/12-8/12 =3/12=1/4

解:采用分配律, 原式=5.16+3.8x1.2-6.9 =5.16+3.8x(1+0.2)-6.9 =5.16+3.8+3.8x0.2-6.9 =8.96-6.9+0.76 =2.06+0.76 =3.82

2-6/13÷9/29-2/3 解:根据约分和通分的运用, 原式=2-6/13÷9/29-2/3 =2-6/13x29/9-2/3 =2-58/39-2/3 =2-1-19/39-26/39 =1-45/39 =-6/39 =-2/13

应该是不得分,能简算的必须简算,这是考察一能不能看出简算,而不是结果对不对的问题

(382X26分之7+0.618X26分之7)X3又7分之5 =(382*7/26+0.618*7/26)*26/7 =382+0.618 =382.618 5分之4+25分之3X21分之5+5分之3X2 =4/5+3/25*5/21+3/5*2 =4/5+1/35+6/5 =28/35+1/35+42/35 =71/35 333X332332332-332X333333333 =333X333333333-333*...

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