计算.45630÷380=2874+1536+905-2744
计算.45630÷380=2874+1536+905-2744??
(1)45630÷380=120…30(2)2874+1536+905-2744=2874-2744+1536+905=130+1536+905=2571
(1)45630÷380=120…30(2)2874+1536+905-2744=2874-2744+1536+905=130+1536+905=2571