7.46-(3.37-2.55)简便计算
7.46-(3.37-2.55)
=7.46-3.37+2.55
=7.46+2.55-3.37
=7.46+2.55-3.36-0.01
=(7.46-3.36)+(2.55-0.01)
=4.10+2.54
=6.64
=7.46-3.37+2.55
=7.46+2.55-3.37
=7.46+2.55-3.36-0.01
=(7.46-3.36)+(2.55-0.01)
=4.10+2.54
=6.64
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第1个回答 2017-10-30
好了,如果帮到你还请记得采纳哦