45乘54比44乘55要大,思路就是45x54=44x54+54,而44x55=44x54+44,因为54>44,所以45x54>44x55希望对你有帮助,望采纳,谢谢
45×54=(44+1)×54=44×54+54=44×(55-1)+54=44×55-44+54=44×55+10所以45×54>44×55