7.28+0.43+5.75怎么简便运算?
问题描述:
7.28+0.43+5.75怎么简便运算?
答
7.25+5.75+0.3+0.46
13+0.49
13.49
7.28+0.43+5.75怎么简便运算?
7.25+5.75+0.3+0.46
13+0.49
13.49