金六福红标42度图片:5436乘5438减5435乘5439,求解

来源:百度文库 编辑:高考问答 时间:2024/04/27 18:36:16

5436*5438-5435*5439
=5436*5438-5435*(5438+1)
=(5436-5435)*5438-5435
=5438-5435=3
(供参考)

4啊
(5435+1)·(5439-1)-5435·5439

5436乘5438减5435乘5439
=(5437-1)*(5437+1)-(5437-2)*(5437+2)
=5437^2-1-5437^2+4
=3

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