www.qcfz.net > 简便运算零点六六除以一点二除以五

简便运算零点六六除以一点二除以五

解: 0.66÷1.2÷5 =0.66÷(1.2*5) =0.66÷6 =0.11

1.25÷0.5+0.25×20 =2.5+5 =7.5

3.69÷(1.23x0.5) =3.69÷1.23÷0.5 =3÷0.5 =6

四点二除以零点一二五 =4.2×8 =4×8+0.2×8 =32+1.6 =33.6

答:21.6÷0.8-1.2×5=27-6=21

125*0.176+36.1/0.8+12.5*2.63 =0.125*176+361/8+0.125*263 =176/8+361/8+263/8 =(176+361+263)/8 =(170+360+260+10)/8 =800/8 =100

13.2 七点一二八除以零点五四等于13.2

44点一除以四点二除以零点七 =44.1÷0.7÷4.2 =63÷2.1÷2 =30÷2 =15

括号里的20-1点二五×0点八括起来除以一点九脱式计算 解: (20-1.25×0.8)÷1.9 =(20-1)÷1.9 =19÷1.9 =10

解:5.2-1又3/5÷0.375*4/5+1/8*0.8 =26/5-8/5÷3/8*4/5+1/8*4/5 =26/5-8/5*8/3*4/5+1/10 =26/5-256/75+1/10 =(390-256)/75+1/10 =134/75+1/10 =(268+15)150 =283/150

网站地图

All rights reserved Powered by www.qcfz.net

copyright ©right 2010-2021。
www.qcfz.net内容来自网络,如有侵犯请联系客服。zhit325@qq.com