题目

简算下列各题。 (1) 0.125×5.8×8 (2) 17.6-1.68-2.32 (3) 4.9×0.38+0.62×4.9 (4) 1.83+5.75+3.17 答案: 0.125×5.8×8 =(0.125×8)×5.8 =1×5.8 =5.8 17.6-1.68-2.32 =17.6-(1.68+2.32) =17.6-4 =13.6 4.9×0.38+0.62×4.9 =4.9×(0.38+0.62) =4.9×1 =4.9 1.83+5.75+3.17 =(1.83+3.17)+5.75 =5+5.75 =10.75
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