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80吨比______吨多60%;______吨比80吨少37.5%;45千克是60千克的______%;28米比35米少______%.
人气:242 ℃ 时间:2020-01-30 06:55:17
解答
(1)80÷(1+60%)
=80÷160%
=50(吨)
(2)80×(1-37.5%)
=80×62.5%
=50(吨)
(3)45÷60
=0.75
=75%
(4)(35-28)÷35
=7÷35
=0.2
=20%
故答案为:50;50;75;20.
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