48×(4⼀1-6⼀1+12⼀1)简便方法?

2024-11-08 08:43:27
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回答(1):

48×(4/1-6/1+12/1)简便方法
=48x4/1-48x6/1+48x12/1
=12-8+4
=4+4
=8