299999+29999+2999+299+29怎样简便计算?

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/11 18:31:48
299999+29999+2999+299+29怎样简便计算?
x)3m#8 "YC߳۟kxou noTOz;56mc8 "X*(<#S<;{lbl5!5$ͶgK<ٱɎާ}^6N~:VI!5

299999+29999+2999+299+29怎样简便计算?
299999+29999+2999+299+29怎样简便计算?

299999+29999+2999+299+29怎样简便计算?
299999+29999+2999+299+29
=300000+30000+3000+300+30-5
=333330-5
=333325

299999+29999+2999+299+29
=300000-1+30000-1+3000-1+300-1+30-1
=333330-5
=333325

楼主不厚道啊= =