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简算:29.58).58÷5.8

5.8*101-5.8 =5.8*(101-1) =5.8*100 =580 简便计算: 5.8*101-5.8 =5.8*(101-1) =580

6/7×29+58÷(7÷4) =6/7×29+58÷7/4 =6/7×29+58×4/7 =6/7×29+(29×2)×4/7 =6/7×29+29×(2×4/7) =6/7×29+29×8/7 =(6/7+8/7)×29 =2×29 =58

14/9×29+58/9×29 =(14/9+58/9)×29 =72/29

望采纳谢谢

29×98+58 =29x98+29x2 =29x(98+2) =29x100 =2900 请采纳正确答案,你们只提问,不采纳正确答案,回答都没有劲!谢谢管理员推荐采纳!! 朋友,请【采纳答案】,您的采纳是我答题的动力,如果没有明白,请追问。谢谢。

102x29-58 =102x29-2x29 =29x(102-2) =29x100 =2900

864x29÷58 =864÷(58÷29) =864÷2 =432

58X(29+52+1)

29÷58=29×85=1645(千克);答:1千克芝麻能榨1645千克油.故选:C.

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