你好，很高兴为你解答25×46×40×3简便计算=25x4x46x30=100x1380=138000后面是3个0满意采纳哦！！
25×46×40×3简便计算=（25x40）x（46x3）=1000x138=138000
25×46×40×3=25x40x3x(40+6)=1000x3x(40+6)=3000x40+3000x6=120000+18000=138000
