明明在计算1.5-a+2.5时,错算成15-a+25,这样算得的结果比正确结果大______.
人气:204 ℃ 时间:2020-05-20 19:07:36
解答
(15-a+25)-(1.5-a+2.5)
=40-a-(4-a)
=40-a-4+a
=36
答:算得的结果比正确结果大36.
故答案为:36.
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