在横线里填上合适的数.使它们能简便计算.
54×76+______×54;85+239+______;125×25×______;2543-729-______.
(1)54×76+24×54;
(2)85+239+15;
(3)125×25×4;
(4)2543-729-271.
故答案为:24,15,4,271.
在横线里填上合适的数.使它们能简便计算.
54×76+______×54;85+239+______;125×25×______;2543-729-______.
(1)54×76+24×54;
(2)85+239+15;
(3)125×25×4;
(4)2543-729-271.
故答案为:24,15,4,271.