口算。
(1)8-1.56= |
(2)4.8+3.2= |
(3)0.5+0.7= |
(4)8.74-2= |
(5)0.57-0.23= |
(6)1.54-0.07= |
(7)0.32+0.23= |
(8)1-0.06= |
(9)1.36+0.47= |
(10)5.2-1.9= |
(11)47.68-7.68= |
(12)0.56+1.44= |
(13)0.75+0.8= |
(14)2-0.98= |
(15)12.5+1.32= |
(16)0.76-0.54= |
(17)85-84.5= |
(18)4.02+0.98= |
(19)9.7+3= |
(20)0.76-0.08= | |