(1)121.26-□+89.56=92.65;121.26-□=3.09,□=121.26-3.09,□=118.17,(2)38.66-(□-6.73)=35.16;□-6.73=3.5,□=6.73+3.5,□=10.23,(3)60-(□+12.3)=31.9.60-□-12.3=31.9,47.7-□=31.9,□=47.7-31.9,□=15.8.故答案为:118.17;10.23;15.8.