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35乘36加36乘37加34乘35加37乘34 用简便方法怎么做
人气:474 ℃ 时间:2019-11-15 03:46:07
解答
35*36+36*37+34*35+37*34
=35*(36+34)+37*(36+34)
=35*70+37*70
=70*(35+37)
=70*72
=5040
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