小学数学百分数应用题及答案(四十八)(2)
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2018-09-18 09:51:55
解答
(108-81)÷108,
=27÷108,
=25%;
答:便宜了25%.
解答
(108-81)÷108,
=27÷108,
=25%;
答:便宜了25%.