题目
计算下面各题,能简算的要简算。
(1)
8.65-3.47+3.5
(2)
5.62+31.8+4.38
(3)
37.25+(16.3-7.25)
(4)
8.78-(3.78+3.5)
(5)
7.53+4.8-2.47
(6)
9.61-2.85-1.15
答案: 8.65-3.47+3.5=5.18+3.5=8.68
5.62+31.8+4.38=5.62+4.38+31.8=41.8
37.25+(16.3-7.25)=37.25-7.25+16.3=46.3
8.78-(3.78+3.5)=8.78-3.78-3.5=1.5
7.53+4.8-2.47=12.33-2.47=9.86
9.61-2.85-1.15=9.61-(2.85+1.15)=13.61