求6.25×7×8,2.05×6.53-2.05×0.33的简便计算.
来源：学生作业帮助网 编辑：六六作业网 时间：2024/04/27 23:34:05
求6.25×7×8,2.05×6.53-2.05×0.33的简便计算.求6.25×7×8,2.05×6.53-2.05×0.33的简便计算.求6.25×7×8,2.05×6.53-2.05×0.33的
求6.25×7×8,2.05×6.53-2.05×0.33的简便计算.
求6.25×7×8,2.05×6.53-2.05×0.33的简便计算.
求6.25×7×8,2.05×6.53-2.05×0.33的简便计算.
解
6.25×7×8
=6.25×4×2×7
=25×2×7
=350
2.05×6.53-2.05×0.33
=2.05×（6.53-0.33）
=2.05×6.2
=2.05×（6+0.2）
=2.05×6+2.05×0.2
=12.3+0.41
=12.71