Question

42.5×62+28×42.5+90×57.5简算

42.5×62+28×42.5+90×57.5简算

Answer 1

42.5×62+28×42.5+90×57.5
=42.5×（62+28）亮橡敬敬慎如迹+90×57.5
=42.5×90+90×57.5
=（42.5+57.5）×90
=100×90
=9000

Answer 2

42.5×62+28×42.5+90×57.5
=42.5x（虚虚尘62+28）+90x57.5
=42.5x90+90x57.5
=（差禅誉纳42.5+57.5）x90
=100x90
=9000