问题标题:
【37.5×21.5×0.112+35.5×12.5×0.112=______.】
问题描述:
37.5×21.5×0.112+35.5×12.5×0.112=______.
邓清勇回答:
37.5×21.5×0.112+35.5×12.5×0.112=0.112×(37.5×21.5+35.5×12.5)=0.112×(12.5×3×21.5+35.5×12.5)=0.112×12.5×(3×21.5+35.5)=0.112×12.5×(64.5+35.5)=0.112×12.5×100=140故答案为:140....
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