ldcf.net
当前位置:首页 >> [1.8%(1÷75%+1/3)]×1又5/8脱式计算.(能简算的要简算) >>

[1.8%(1÷75%+1/3)]×1又5/8脱式计算.(能简算的要简算)

[1.8-(1÷75%+1/3)]×1又5/8 =【1.8-4/3+1/3)]×13/8 =【9/5-(4/3-1/3)]×13/8 =[9/5-1]×13/8 =4/5×13/8 =13/10

(1)12.75-517+114-1217,=(12.75+114)-(517+1217),=14-1,=13;(2)[1-(15+0.3)]÷18,=[1-0.5]÷18,=0.5÷18,=4;(3)29×40%+79÷52,=(29+79)×40%,=1×40%,=0.4;(4)1.25×3.2×2.5,=(1.25×8)×(0.4×2.5),=10×1,=10.

(1)19.48×1.96-0.96×19.48=(1.96-0.96)×19.48=1×19.48=19.48;(2)134+2-312=334-312=14;(3)10.75-(545+4.2-423)=10.75-(545+415-423)=10.75-(10-423)=1034-423=6112;(4)3.12×[0.9+(1-0.3)÷0.1]=3.12×[0.9+0.7÷0.1]=3.12×[0....

(1)(66-32×1.2)÷0.25,=(66-38.4)÷0.25,=27.6÷0.25,=110.4,(2)10×34+17×75%-7×0.75,=10×0.75+17×0.75-7×0.75,=(10+17-7)×0.75,=20×0.75,=15,(3)0.25×[515×(3-2.5×78)],=0.25×[515×(3-3516)],=0.25×[515×1316],=14×26...

您好: 1÷(1-75%) =1÷25% =4 200×(1+20%) =200x1.2 =240 75%×7分之5×3分之4 =3/4x4/3x5/7 =1x5/7 =5/7 0.8×99+0.8 =0.8x(99+1) =0.8x100 =80 不明白,可以追问 如有帮助,记得采纳,谢谢 祝学习进步!

如图

(1)2.6×1.9÷2.6×1.9=(2.6÷2.6)×(1.9×1.9)=1×3.61=3.61(2)4.264÷(0.16×20.5)=4.264÷3.28=1.3(3)12×2.5+0.8×2.5=3×(4×2.5)+0.8×2.5=3×10+0.8×2.5=30+2=32(4)3.75÷0.25÷0.4=3.75÷(0.25×0.4)=3.75÷0.1=37.5(5)30-[5.5+18÷(5.2+...

(1)8/9×[7/8-(7/16-1/8)](2)10×3/4+17×75%-7×0. =8/9×[7/8-7/16+1/8] =8/9×[7/8+1/8-7/16] =8/9×[1-7/16] =8/9×9/16 =1/2 (2)10×3/4+17×75%-7×0.75 [3/4=75%=0.75] =0.75×(10+17-7) =0.75×20 =15

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