245+336+155+164500-135-125简便方法

2025-03-31 12:59:32
推荐回答(2个)
回答1:

245+336+155+164500-135-125=245+155+336+164500-(135+125)=400+336+164500-260=140+336+164500=476+164500=164976

回答2:

245+336+155+164
=(245+155)+(336+164)
=400+500
=900
500-135-125
=500-(135+125)
=500-260
=240