-4^2÷(-4)×1/4-0.25×(-12)+|-5|
1/5×12÷1/5= 0.25×12.5÷1/32= 2/3×4/9×
24÷1.5-8.4×0.25 1+0.45÷0.9-8分之7 (5分之4-3分之2)X=12 0.4X+4×1.7=1
计数:(-2/5)²÷(-12/5)-8/21×(-7/4)-0.25
4^2÷(-1/4)-5^4÷(-5)^3,
有理数除法 (-0.25)÷(-1.3)12÷(-1\3)÷1\2(-7)÷(-7)÷0.1(-2.75)÷(4又2\5
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=?
能简算要简算3/5÷1/4÷6÷14/1523/25÷(3/4÷2/5)15/16÷(5/12÷5/8+3/8)
(1):[(8/9+1又1/3)×3/4-0.25]÷1/12 (2):(2又1/2003×9又5/8+2002/200
(0.8+1/4)÷3/5+0.25 求简算
-0.25²÷(-1/2)4^×(-1)27^=
4又5分之3÷4+5又5分之2×4分之1+0.25 = 1998又1999分之1998÷1998=