要用竖式3.42×0.25= 1.57÷3.9 = 70.7÷33=

4.7÷2.2= 70.7÷33= 2.29÷1.1= 用简便方法计算 四分之一÷()=()÷四分之一=()×四分之一等于0.25 o.125:0.25=(0.125×( )):(0.25×( ))==(( )÷( )):(( )÷( ))=( ):( （-1.5+2.75）÷（-0.25）= 51÷0.25=51×4 -91÷3= -56÷(-14)= 16÷(-3)= (-48)÷(16)= 4/5÷(-1)= -0.25÷3/8= 1÷32÷0.05÷0.25÷0.5=?这道题的简便计算该怎样算? 1÷32÷0.5÷0.25÷0.125=(简便运算) 31÷5+32÷5+33÷5+34÷5=______． 4÷()=24分之()=0.25=()比12 0.25=()分之1=4:( )=( )÷8 1:( )=8分之( )=0.25=( )÷16