77×50×636×25用简便方法怎么计算?

2025-02-22 22:16:40
推荐回答(1个)
回答1:

77×50×636×25=(70+7)x50x(600+30+6)x25=(70x50+7x50)x(600x25+30x25+6x25)=3850x15900=61215000
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