用简便方法计算:9x(125+25)x24

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用简便方法计算:9x(125+25)x24用简便方法计算:9x(125+25)x24用简便方法计算:9x(125+25)x249×(125+25)×24=9×150×24=9×100+9×50×24=

用简便方法计算:9x(125+25)x24
用简便方法计算:9x(125+25)x24

用简便方法计算:9x(125+25)x24
9×(125+25)×24
=9×150×24
=9×100+9×50×24
=900+450×24
=1350×24
=1000×24+350×24
=24000+350×20+350×4
=24000+7000+1400
=32400
望采!