1.25*3⼀4--3⼀4*3⼀5--3⼀4简便计算

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2024-12-28 07:21:41
推荐回答(1个)
回答1:

1.25*3/4-3/4*3/5-3/4
=1.25*3/4-3/4*0.6-3/4
=3/4*(1.25-0.6-1)
=-3/4*0.35
=-0.75*0.35
=-0.2625