(11/22-3/4)÷(2-1/2)=
11分之2÷19分之11÷22分之19=2÷(4分之3-6分之1)×9分之7=11分之4÷19+19分之8×11分之4=
1÷(1×2×3)+1÷(2×3×4)+1÷(3×4×5)+``````1÷(20×21×22)=
3.(1×2×3×4×…×9×10×11)÷(27×25×24×22)
数学题(加括号)加括号1+2×3-4÷5=11×2+3-4+5÷6=11+2×3÷4+5+6÷7=11+2÷3×4+5+
2/11÷1/9÷19/22 9/5x2/3÷1
添括号,使等式成立1+2×3-4÷5=1 1×2+3-4+5÷6=11+2÷3×4+5+6-7÷8=11×2+3+4-5
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/
解方程:3x-2=x+4 8x-7.5+1.5=42 x÷3/11=4/3÷9/22 3/5x=56 x÷4/5=8/3
(1×2×3×4×5×6×7×8×9×10×11)÷(27×25×24×22)怎样简算?
1×3×11+2×6×22+3×9×33/1×2×17+2×4×34+3×6×51=?
能简算要简算:8×2.5×1.25×4=?11/3÷1/2×6=?
3/()÷2=()/4 ()/5÷()=1/15