3500ǧˣ( )ǧ 
3.6ǧף( )ǧ( ) 
5.45ǧˣ ǧˣ  
6Ԫ8=(    )Ԫ
3.7ƽ= ƽ
()Ԫ=6Ԫ8
3.6֣3()ǧ
3()ǧˣ3.6
3500ǧˣ( )ǧ 
(    )Ԫ=6Ԫ8
3.6֣()( )ǧ
3( )ǧˣ3.6
3.16666666ǧף( )ǧ( )()
