1. (2023四下·离石月考) 直接写出得数

0.6+1.2=          0.8-0.06 =         2+1.8=             1-0.09=

4.5+5=            6+0.04=          18.5-5=              7.77-7.7=

45＋2.5 =          3.33-2.22=