12,16,14,15(

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/17 21:45:24
12,16,14,15(12,16,14,15(12,16,14,15(1612+16=2816+14=3014+15=2915+16=31

12,16,14,15(
12,16,14,15(

12,16,14,15(
16
12+16=28
16+14=30
14+15=29
15+16=31