1÷0.25=?7.9÷0.01=?（2.5+0.9）×0.4=?（1.5+0.25）×4=?请按顺序回答

1÷0.25=?7.9÷0.01=?（2.5+0.9）×0.4=?（1.5+0.25）×4=?请按顺序回答 1÷0.01=多少? 1÷0.1÷0.01÷0.001÷0.0001÷0.00001÷0.000001=多少 0.125:0.25 =0.125÷1/8:0.125÷1/8=1:2 1.6÷0.01=8＋2× 1.6÷0.01=8＋2× 0.25×（）=0.25÷（）=1 1÷32÷0.5÷0.25÷0.125=(简便运算) 1÷(2÷3)÷(3÷4)÷(4÷5)÷.÷(1999÷2000)= 0.25=（ ）分之1=（ ）％=2÷（ ）=（ ）÷16=（ ）：12 1÷(1÷2)÷(2÷3)÷(3÷4)÷.÷(8÷9)÷(9÷10)=? 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=2/3×4/9×1/2=6.9+3.1-6.9+3.1=1÷1/2-1/2÷1=3/5+3/5÷3/5+3/5=1÷1/7×1÷1/7=4/5×4/5÷4/5×4/5= x÷2/1=3/1÷6/1 1.25:0.25=x:6 x得多少? 0.25=几分之1=2÷（ ）=（ ）比12=（ ）％. 1:( )=8分之( )=0.25=( )÷16 0.25=()分之1=4:( )=( )÷8 20分只问几题简单的数学题`事后追分计算-91÷13= -56÷(-14)= 16÷(-3)= (-48)÷(-16)= 5/16÷(-1)=-0.25÷3/8=填空1×(-5)= 1÷(-5)= 1+(-5)= 1-(-5)= -1×(-5)= -1÷(-5)= -1×(-5)= -1-(-5)= 计算0.1÷(-0.001)÷(-1)=(-3/4)×(-3/2)÷(-9/4)=- (0.1x-0.2)÷0.5-(0.01x+0.03)÷0.01=(2x-5)÷3-3的解