240÷()=160÷()=560÷()=()÷8=40×()=80÷()=()×20
240÷()=160÷()=560÷()=()÷8=40×()=80÷()=()×20
120×2÷(80-60),=240÷20,=12(分钟);(
-20÷(-5)-(-56)÷8=( )
40÷()=():20=0.8=()%
11、( )÷[( )÷4-0.75]÷0.03125=
5.6÷0.05=( )÷5
12 ÷( )= 6 /( )= ( )/ 5 = 0.6 = ( )÷ 8 = ( )%
40 -------- =0.625=( )÷16=( )% ( )
3/8=( )÷16=12÷( )=()%=() 小数
()/8=10/5=()÷4=360÷()=()/1
3÷()=24,3÷()=0.8
1.252÷(-44)-(-356)÷(-0.196)=