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计算下面各题,能简算的要简算.10-3.57-5.430.83+0.79+0.17+11.219.2-0.39-6.234.82-(3.82+15.2)

题目详情
计算下面各题,能简算的要简算.
10-3.57-5.43      
0.83+0.79+0.17+11.21
9.2-0.39-6.2        
34.82-(3.82+15.2)
▼优质解答
答案和解析
①10-3.57-5.43=10-(3.57+5.43)=10-9=1②0.83+0.79+0.17+11.21=(0.83+0.17)+(11.21+0.79)=1+12=13③9.2-0.39-6.2 =9.2-6.2-0.39=3-0.39=2.61④34.82-(3.82+15.2)=34.82-3.82-15.2=31-15.2=15.8