简便计算!28×29/27+

来源:学生作业帮助网 编辑:六六作业网 时间:2024/07/11 21:00:29
简便计算!28×29/27+简便计算!28×29/27+简便计算!28×29/27+28×29/27=(27+1)×29/27=27×29/27+1×29/27=29+29/27=30又2/2728×

简便计算!28×29/27+
简便计算!28×29/27+

简便计算!28×29/27+
28×29/27
=(27+1)×29/27
=27×29/27+1×29/27
=29+29/27
=30又2/27

28×29/27+?