300.3+30.03+3.003+3.0003-0.6333的简便运算
问题描述：
300.3+30.03+3.003+3.0003-0.6333的简便运算
答
300.3+30.03+3.003+3.0003-0.6333＝300.3+30.03+3.003+3.0003-（0.3+0.03+0.003+0.003+0.3）＝300.3-0.3+30.03-0.03+3.003-0.003+3.0003-0.003-0.3＝300+30+3+3-0.3＝336-0.3＝335.7