=(40十4)X25=40X25十4X25=1000十100=1100
44x25 =(40+4)x25 =40ⅹ搜慧侍碧扮25+4ⅹ世吵25 =1000+100 =1100
44×25＝(40+4)×25＝40×25+4×25＝1000+100＝1100
44*25=11*4*25=11*100=1100
=(40+4)×25 =40×25+4×25 =1000+100 =1100
