1/5×12÷1/5= 0.25×12.5÷1/32= 2/3×4/9×
1/5×12÷1/5= 0.25×12.5÷1/32= 2/3×4/9×
简算要过程4/7÷9+3/7×1/9 [1-(1/8+0.25)]÷5/12=?
要过程4/7÷9+3/7×1/9 [1-(1/8+0.25)]÷5/12=?
1、10分之1÷3分之2=( )÷0.25( )÷0.2( )×9分之5( )÷2分之1( )
12÷(3/4÷1/5) = =
1.-3^2-[-9÷(-3)^2-1]-(-5)^2×(-2)^3÷1/0.25=
12÷(3/4÷1/5)=?
3/()÷2=()/4 ()/5÷()=1/15
8/9x=4/5 2/3x÷1/4=12 3/4x÷1/6=18 (10/9-2/3)x=
-91÷3= -56÷(-14)= 16÷(-3)= (-48)÷(16)= 4/5÷(-1)= -0.25÷3/8=
12/5×8/3=()÷24/13=()×3/1=()÷26/1=() 2/1×3/1=()÷2/1=()÷9/4=()
1÷2÷3÷4÷5÷6÷7÷8÷9=2.8添上括号使等式成立