1. (2022五下·兴化月考) 口算

4.1-3.8=        4+0.78=         14.6-0.4=       1.3+8.6=         0.8-0.55=

4-0.04=       1-0.03=         3.5+3.5=         0.8-0.5=            0.78+2.2=