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(—5.25)*(—4.37)-4.37*(-19.75)-25*(-5.27)答案要过程
人气:231 ℃ 时间:2020-06-02 19:06:58
解答
(—5.25)*(—4.37)-4.37*(-19.75)-25*(-5.27)
=5.25*4.37+4.37*19.75+25*5.27
=(5.25+19.75)*4.37+25*5.27
=25*4.37+25*5.27
=25*(4.37+5.27)
=25*9.64
=241
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