28300-283*90-2830怎样简便计算
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 14:33:58
![28300-283*90-2830怎样简便计算](/uploads/image/z/555681-57-1.jpg?t=28300-283%2A90-2830%E6%80%8E%E6%A0%B7%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97)
x)3060Z`YC߳۟kxounTO:;
LYBdO҆Ȳt
D2/.H̳m!.
=Q$ڭ&|,F χ
28300-283*90-2830怎样简便计算
28300-283*90-2830怎样简便计算
28300-283*90-2830怎样简便计算
28300-283*90-2830
=283×100-283×90-283×10
=283×(100-90-10)
=283×0
=0
28300-283*90-2830
=283*100-283*90-2830
=283*(100-90)-2830
=283*10-2830
=2830-2830
=0
28300-283*90-2830
=283(100-90-10)
=283*0
=0