82.4×6.7+8.24×31+0.824×20的简便算法
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/20 13:51:12
![82.4×6.7+8.24×31+0.824×20的简便算法](/uploads/image/z/133045-61-5.jpg?t=82.4%C3%976.7%2B8.24%C3%9731%2B0.824%C3%9720%E7%9A%84%E7%AE%80%E4%BE%BF%E7%AE%97%E6%B3%95)
82.4×6.7+8.24×31+0.824×20的简便算法
82.4×6.7+8.24×31+0.824×20的简便算法
82.4×6.7+8.24×31+0.824×20的简便算法
82.4×6.7+8.24×31+0.824×20
=82.4×6.7+82.4×3.1+82.4×0.2
=82.4×(6.7+3.1+0.2)
=82.4×10
=824
用计算器