题目内容

用简便方法计算下面各题。
(1)3.27+1.44+5.73 (2)8.65+0.4-8.65+0.4
(3)0.27+2.7+(7.73-1.7) (4)4.33-2.07-1.93
(1)原式=3.27+5.73+1.44
                =9+1.44
                =10.44
(2)原式=8.65-8.65+0.4+0.4
                =0+0.4+0.4
                =0.8
(3)原式=0.27+7.73+2.7-1.7
                =8+1
                =9
(4)原式= 4.33-(2.07+1.93)
                = 4.33-4
                =0.33
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