题目内容

计算下面各题。(能简算的要简算)
(1)4.5×4-414÷23 (2)(-+)÷
(2)(-÷2)÷ (4)16×0.25×21
(1)原式=18-18
                =0
(2)原式=×60-×60+×60
                 =6-5+4
                 =1
(3)原式=(-)÷
                =-
                =
(4)原式= 4×0.25×4×21
                =1×4×21
                =84
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网