[Script Info]
Title: 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:00.71,0:00:06.80,Default,,0000,0000,0000,,四捨五入9.564或者9又564/1000
Dialogue: 0,0:00:06.80,0:00:11.31,Default,,0000,0000,0000,,到十分位
Dialogue: 0,0:00:11.31,0:00:16.64,Default,,0000,0000,0000,,所以，讓我把它寫大一點，9.564
Dialogue: 0,0:00:16.64,0:00:19.34,Default,,0000,0000,0000,,我們需要把它四捨五入到十分位
Dialogue: 0,0:00:19.34,0:00:21.76,Default,,0000,0000,0000,,所以，十分位在哪裡呢?
Dialogue: 0,0:00:21.76,0:00:23.73,Default,,0000,0000,0000,,十分位在這裡
Dialogue: 0,0:00:23.73,0:00:27.17,Default,,0000,0000,0000,,這代表了5/10
Dialogue: 0,0:00:27.17,0:00:30.82,Default,,0000,0000,0000,,這是個位數，這是十分位
Dialogue: 0,0:00:30.82,0:00:33.43,Default,,0000,0000,0000,,這是百分位
Dialogue: 0,0:00:33.43,0:00:34.92,Default,,0000,0000,0000,,這是千分位
Dialogue: 0,0:00:34.92,0:00:38.26,Default,,0000,0000,0000,,我們需要四捨五入到十分位
Dialogue: 0,0:00:38.26,0:00:41.79,Default,,0000,0000,0000,,所以如果我們四捨五入進位的話，這會變為9.6
Dialogue: 0,0:00:41.79,0:00:45.46,Default,,0000,0000,0000,,如果我們四捨五入捨去的話，這會變為9.5
Dialogue: 0,0:00:45.46,0:00:47.62,Default,,0000,0000,0000,,就像一般的四捨五入，當我們不是在做小數的時候
Dialogue: 0,0:00:47.62,0:00:50.92,Default,,0000,0000,0000,,你就移到下一位
Dialogue: 0,0:00:50.92,0:00:55.48,Default,,0000,0000,0000,,你就看右邊一位
Dialogue: 0,0:00:55.48,0:00:57.95,Default,,0000,0000,0000,,然後看它是大於或等於5嗎?
Dialogue: 0,0:00:57.95,0:01:01.50,Default,,0000,0000,0000,,如果是，你就進位，如果不是，你就捨去
Dialogue: 0,0:01:01.50,0:01:06.04,Default,,0000,0000,0000,,6很顯然大於或等於5，所以我們進位
Dialogue: 0,0:01:09.79,0:01:19.80,Default,,0000,0000,0000,,所以，9.564變為9.6，或者叫做
Dialogue: 0,0:01:19.80,0:01:23.51,Default,,0000,0000,0000,,9又6/10
Dialogue: 0,0:01:23.51,0:01:25.20,Default,,0000,0000,0000,,我們做完了。