ldcf.net
当前位置:首页 >> 计算:(1)(2.5×45)÷(14×0.8)?0.75÷340(2)1417×... >>

计算:(1)(2.5×45)÷(14×0.8)?0.75÷340(2)1417×...

(1)(2.5×45)÷(14×0.8)?0.75÷340,=2÷0.2-10,=10-10,=0;(2)1417×(223?34)+1112÷1721,=2117×2312+1112×2117,=(2312+1112)×2117,=3412×2117,=72;(3)718×4.5+3.75÷16.2×215,=1.75+154×233×115,=1.75+0.5,=2.25;(4)[1?(112+115...

(1)1+0.45÷0.9-0.75,=1+0.5-0.75,=1.5-0.75,=0.75;(2)(5.8-3.8÷4)×0.8,=(5.8-0.95)×0.8,=4.85×0.8,=3.88;(3)16×23÷(45-815),=16×23÷415,=16×23×154,=512;(4)89×[34-(716-14)],=89×[34?316],=89×916,=12.

(1)1+0.45÷0.9-0.75,=1+0.5-0.75,=1.5-0.75,=0.75;(2)(5.8-3.8÷4)×0.8,=(5.8-0.95)×0.8,=4.85×0.8,=3.88;(3) 1 6 × 2 3 ÷( 4 5 - 8 15 ),= 1 6 × 2 3 ÷ 4 15 ,= 1 6 × 2 3 × 15 4 ,= 5 12 ;(4) 8 9 ×[ 3 4 -( 7 16 ...

①1+0.45÷0.9-0.75=1+0.5-0.75=0.75;②[1-( 1 2 - 1 3 )]÷ 5 8 =[1- 1 6 ]× 8 5 ,= 5 6 × 8 5 ,= 4 3 ;③( 4 5 + 1 4 )÷ 7 3 + 3 10 = 21 20 × 3 7 + 3 10 ,= 9 20 + 3 10 ,= 3 4 .

(2.5X5分之4)÷(4分之1X0.8)-0.75÷40分之3等于0, (2.5*4/5)÷(1/4*0.8)-0.75÷3/40=2/0.2-(3/4)/(3/40)=10-10=0。

①8.6×10.1,=8.6×(10+0.1),=8.6×10+8.6×0.1,=86+0.86,=86.86;②78.1-7.7÷0.7×5.2,=78.1-11×5.2,=78.1-57.2,=20.9;③〔(8.1-5.6)×0.9-1〕×0.4,=[2.5×0.9-1]×0.4,=[2.25-1]×0.4,=1.25×0.4,=0.5;④8.25×4.08+0.75×4.08+4.08,=(8.2...

第一个0.15乘以5乘以18除以0.15=5乘以18=90 第二个9乘以0.23除以0.23除以0.45=9除以0.45=20

(1)2.9×8.1=23.49; 2.9×8.1 . 2 9 2 3 2 2 3.4 9验算: 8.1×2.9 . 7 2 9 1 6 2 2 3.4 9(2)0.756÷0.18=4.2; 4.2 187 5.6 7 2 3 6 3 6 0验算: 0.1 8× 4.2 . 3 6 7 20.7 5 6(3)0.48×2.5=1.2; 0.4 8× 2.5 . 2 4 0 9 6 1.2 0 0(4)36÷50=0...

200×(0.2+1/4)÷0.75=120 朋友,请采纳正确答案,你们只提问,不采纳正确答案,回答都没有劲!!! 朋友,请【采纳答案】,您的采纳是我答题的动力,如果没有明白,请追问。谢谢。

1.23÷3=0.41 0.8×11=8.8 1-0.75=0.25 1.7×0.4=0.68 0.36÷12=0.03 1.6+0.38=1.98 1.2÷0.3=4 0.75×4=3 15×0.4=6 2.14-0.9=1.24 4×0.25=1 10÷2.5=4 0.4×52=20.8 1.6×0.4=0.64 9.6÷6=1.6 4.3-0.4=3.9 7-6.2=0.8 0.86-0.3=0.56 8.8÷2.2=4 2.6÷0.2=13...

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