25×41=25x(40+1)=25x40+25x1=1000+25=1025祝学习进步,望采纳,不懂的欢迎追问...
25x41=25x(40+1)=25x40+25x1=1000+25=1025
=25x(40+1)=25x40+25x1=1000+25=1025