在括号里填上最简分数.600千克= 吨90分= 时75cm= m65毫升= 升30m= km450g= kg.
( )-212=159 226+( )=589
( )+125=965 358-( )=316
( )-258=159 256+( )=589
( )+356=912 128-( )=11
( )+125=352 408-( )=205