0.14*5/7+3/5*0.625= (7/10+5/6+4/5)*30= 5/9*0.2+(7.2*1/20-6÷5
来源:学生作业帮 编辑:大师作文网作业帮 分类:数学作业 时间:2024/10/09 10:25:53
0.14*5/7+3/5*0.625= (7/10+5/6+4/5)*30= 5/9*0.2+(7.2*1/20-6÷50) 3.6*[2 ÷(4/5-0.6)]
3/4÷[(1/6+1/20)*(1÷3/20)]
3/4÷[(1/6+1/20)*(1÷3/20)]
0.14*5/7+3/5*0.625
=0.1+3/5×5/8
=0.1+3/8
=0.475
(7/10+5/6+4/5)*30
=7/10×30+5/6×30+4/5×30
=21+25+24
=70
5/9*0.2+(7.2*1/20-6÷50)
=5/9×1/5+0.36-0.12
=1/9+0.24
=79/225
3.6*[2 ÷(4/5-0.6)]
=3.6×2×(4/5-3/5)
=7.2×1/5
=1.44
3/4÷[(1/6+1/20)*(1÷3/20)]
=3/4÷[(1/6+1/20)×20/3]
=3/4÷[10/9+1/3]
=3/4÷13/3
=9/52
=0.1+3/5×5/8
=0.1+3/8
=0.475
(7/10+5/6+4/5)*30
=7/10×30+5/6×30+4/5×30
=21+25+24
=70
5/9*0.2+(7.2*1/20-6÷50)
=5/9×1/5+0.36-0.12
=1/9+0.24
=79/225
3.6*[2 ÷(4/5-0.6)]
=3.6×2×(4/5-3/5)
=7.2×1/5
=1.44
3/4÷[(1/6+1/20)*(1÷3/20)]
=3/4÷[(1/6+1/20)×20/3]
=3/4÷[10/9+1/3]
=3/4÷13/3
=9/52
已知:1*6=1×2×3×4×5×6,6*6=6×7×8×9×10×11,计算(2*5)÷(6*6)?
3/10÷20= 9÷3/4= 5/8×1/4= 6/11×5/12= 5/9-1/6= 2/3÷4/7= 1/8+3/
5/4*3/5=5/4÷5/3=0*5/11=0÷3/2=1/2*6=6÷1/2=1/10÷7/10=28*7/4=4/
3/5×3/10÷5/6+1/6= 4/7×5/18+3/7÷18/5= 12.5×0.32×25=
脑筋急转弯 1=5 ,2=10,3=15,4=20,5=?,6=30,7=35,8=40,9=45
观察:1+2+3+4+5+6+7+8+9+10=(1+10)*(10÷2 )=11*5=55
6道能简算的要简算,(1)4/3×5/7-1/3÷7/5(2)30×(2/5+1/6)(3)1/2×2/5+9/10÷9
(1+2+3+4+5+6+7+8+9+10)÷55=?
1-1/3-1/4=?,1/7×7÷1/7×7=?,1-5÷9=?,3/4×5/6×8/15=?
8*x=25/6÷1/5 20÷(4/3-2/5) 7.2*8-10x=36
1※4=1×2×3×4,6×5=6×7×8×9×10,则(4※5)÷(6※3)=(?
用简便计算:17/20-(5/12+7/20)= 2/9+5/6-(5/6-4/9)= 7/12-1/4-1/8+5/1