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