7又4/25+2又3/4+1.25+0.84 12-4又17/50-0.66 (能简便就简便)
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/02 18:58:50
![7又4/25+2又3/4+1.25+0.84 12-4又17/50-0.66 (能简便就简便)](/uploads/image/z/11612949-69-9.jpg?t=7%E5%8F%884%2F25%2B2%E5%8F%883%2F4%2B1.25%2B0.84+12-4%E5%8F%8817%2F50-0.66+%28%E8%83%BD%E7%AE%80%E4%BE%BF%E5%B0%B1%E7%AE%80%E4%BE%BF%29)
7又4/25+2又3/4+1.25+0.84 12-4又17/50-0.66 (能简便就简便)
7又4/25+2又3/4+1.25+0.84 12-4又17/50-0.66 (能简便就简便)
7又4/25+2又3/4+1.25+0.84 12-4又17/50-0.66 (能简便就简便)
7又4/25+2又3/4+1.25+0.84
=(7.16+0.84)+(2.75+1.25)
=8+4
=12
12-4又17/50-0.66
=12-4.34-0.66
=12-5
=7
第一个数12第二个是7