同学们一星期采集了6筺槐树种子,采集的松树种子是槐树的3倍,采集松树种子多少筺?5l3X'T+D-A3|+V0|8n)f
算式:提示:Y+|0t8\2y/]*{,Y/z5l3X'T+D-A3|+V0|8n)f
答;采集松树种子+c7Z'l-L:Y+[/U筺.5l3X'T+D-A3|+V0|8n)f