题目内容

计算下面各题,能简算的要简算。
(1)12.5×16×0.5 (3)4.8÷0.16÷0.3
(3)0.57×8.3+0.57×1.7 (4)48.7-160.6÷5.84
(1)12.5×16×0.5
  =(12.5×4)×(4×0.5)
  =100
(3)4.8÷0.16÷0.3
  =4.8÷(0.16×0.3)
  =1
(3)0.57×8.3+0.57×1.7
  =0.57×(8.3+1.7)
  =5.7
(4)48.7-160.6÷5.84
  =48.7-27.5
  =21.2
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