3.6*0.75*1.2 (1.5*24*0.18)奥数怎么做
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/11 10:52:06
1.2比0.75=5分之6比4分之3=5分之6乘以3分之4=5分之8=8比5=1.6
(3.6*0.75*1.2)/(1.5*24*0.18)=(0.9*4*0.25*3*3*0.4)/(3*0.25*2*0.2*0.9)上下约去,0.930.25=(4*3*0.4)/(2*0.2)=
1、.(5.75-4.75)/[2.5+(0.75*1.25*8)=4/[2.5+(0.75*10)]=4/(2.5+7.5)=4/10=0.42、(6.9*3.6*3.5)/(1.25/0.25)=
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3.6*11.1+1.2*66.7=1.2*33.3+1.2*66.7=1.2*(33.3+66.7)=1.2*100=120
1.2*4/3+7.2/24=1.6+0.3=1.9
3.6*0.75/3.6*0.75=3.6/3.6*0.75*0.75=3/4*3/4=9/16
(+0.75)+(-2.8)+(-0.2)-1.25=0.75-1.25-(0.28+0.2)=-0.5-0.3=-0.8不懂的欢迎追问,
3.6的6/5是多少?3.6的120%是多少?
(3.6×0.75×1.2)÷(1.5×24×0.18),=(2.7×1.2)÷(36×0.18),=3.24÷6.48,=0.5.
26.3
150|4600450----------------100
x/0.75=2/1.25==>1.25x=0.75*2==>1.25x=1.5==>x=1.5/1.25==>x=1.225/x=75/1.2==>75x=25*1.2==>75x=30==>x=0
直接算最简单等于5.55
8:5
3.6*0.75+3.6/4=3.6*0.75+3.6*0.25=3.6*(0.75+0.25)=3.6*1=3.6
1.2/0.75+0.8=1.2×4/3+0.8=1.6+0.8=2.4
(-1.2)×0.75×(-1.25)=6/5×3/4×5/4=6/5×5/4×3/4=3/2×3/4=9/8
由题意得原式=3.6÷0.18×0.75÷1.5×1.2÷2.4=20×0.5×0.5=5
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