1～100中，有幾個“3”為首位數的數？
熱心網友
3,30,31,32,33,34,35,36,37,38,3911個
熱心網友
11
熱心網友
3,13,23,30,31,32,33,34,35,36,37,38,39,43,53,63,73,83,93,19個
熱心網友
9 個
熱心網友
11
1～100中，有幾個“3”為首位數的數？
3,30,31,32,33,34,35,36,37,38,3911個
11
3,13,23,30,31,32,33,34,35,36,37,38,39,43,53,63,73,83,93,19個
9 個
11