ldcf.net
当前位置:首页 >> 9.1×4.8×4又2分之1÷1.6÷20分之3÷1.3 要简便运算 >>

9.1×4.8×4又2分之1÷1.6÷20分之3÷1.3 要简便运算

9.1×4.8×4又2分之1÷1.6÷20分之3÷1.3 =(9.1÷1.3)×(4.8÷1.6)×(2分之9÷20分之3) =7×3×30 =630 供参考 有疑问请追问

9.1×4.8×7.1÷1.3÷1.6=9.1÷1.3×4.8÷1.6×7.1=7×3×7.1=149.1

3/20=0.15 9.1*4.8*4.5/1.6/0.15/1.3=9.1/1.3*4.8/1.6*4.5/0.15=7*3*30=630

9.1x3.6x4又5分之4÷1又10分之3÷5分之3÷25分之6 =9.1x3.6x4.8÷1.3÷0.6÷0.24 =(9.1÷1.3)x(3.6÷0.6)x(4.8÷0.24) =7x6x20 =840

(9.1×9.4×1.9)÷(1.3×0.95×2.35)该怎样简算 =9.1x9.4x1.9÷1.3÷0.95÷2.35 =(9.1÷1.3)x(9.4÷2.35)x(1.9÷0.95) =7x4x2 =28x2 =56

9.1×3.6×4又4/5÷1又3/10÷3/5÷6/25 =(91/10)×(18/5)×(24/5)×(10/13)×(5/3)×(25/6) =140

6.9×3.6-4.84÷0.4 ②4.75+8.4÷(9.2-6.8) ③1.2÷[2.5(4.3-2.7)] ④4.5×(0.75-0.356)+9.23 ⑤0.88÷0.8+3.2×1.25 ⑥5.4+(0.63+0.555÷1.5)

(1)15×42-1308÷2,=630-654,=-24;(2)8.4-9.1÷1.3+5.8,=8.4-7+5.8,=7.2;(3)4.7×68+53×6.8,=47×6.8+53×6.8,=(47+53)×6.8,=680;(4)2013×20112012,=(2012+1)×20112012,=2012×20112012+20112012×1,=201120112012;(5)137÷8...

解:(9.1x4.8x7.5)÷(2.5x1.3)x16 =(9.1÷1.3)x(7.5÷2.5)x4.8x16 =7x3x4.8x2x8 =21x8x4.8x2 =168x9.6 =168x(10-0.4) =1680-67.2 =1612.8

9.1÷x=1.3方程的解 9.1÷x=1.3 9.1=1.3x(两边同乘以x) 9.1/1.3=x(两边同除以1.3) 91/13=x(分子分母同乘以10) x=7

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