(—5.25)*(—4.37)-4.37*(-19.75)-25*(-5.27)答案要过程
问题描述:
(—5.25)*(—4.37)-4.37*(-19.75)-25*(-5.27)答案要过程
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