[Script Info]
Title: 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:00.04,0:00:05.60,Default,,0000,0000,0000,,上集视频中我们做了99.061除以100
Dialogue: 0,0:00:05.60,0:00:06.83,Default,,0000,0000,0000,,是手算的
Dialogue: 0,0:00:06.83,0:00:08.57,Default,,0000,0000,0000,,用的长除法
Dialogue: 0,0:00:08.57,0:00:10.87,Default,,0000,0000,0000,,这集视频我要告诉大家
Dialogue: 0,0:00:10.87,0:00:13.97,Default,,0000,0000,0000,,除以10时的一个运算技巧
Dialogue: 0,0:00:13.97,0:00:21.69,Default,,0000,0000,0000,,99.061如果是乘以10的乘方
Dialogue: 0,0:00:21.69,0:00:23.28,Default,,0000,0000,0000,,原数会变大
Dialogue: 0,0:00:23.28,0:00:25.11,Default,,0000,0000,0000,,每次乘以10
Dialogue: 0,0:00:25.11,0:00:29.35,Default,,0000,0000,0000,,小数点要右移一位
Dialogue: 0,0:00:29.35,0:00:36.00,Default,,0000,0000,0000,,那么99.061乘以10
Dialogue: 0,0:00:36.00,0:00:40.87,Default,,0000,0000,0000,,就等于990.61
Dialogue: 0,0:00:40.87,0:00:44.28,Default,,0000,0000,0000,,注意 小数点正好是向右移了一位
Dialogue: 0,0:00:44.28,0:00:47.56,Default,,0000,0000,0000,,如果--我随便换个颜色--
Dialogue: 0,0:00:47.56,0:00:51.94,Default,,0000,0000,0000,,99.061除以10
Dialogue: 0,0:00:51.94,0:00:54.80,Default,,0000,0000,0000,,小数点就要向相反方向移动
Dialogue: 0,0:00:54.80,0:01:00.09,Default,,0000,0000,0000,,就会是9.9061
Dialogue: 0,0:01:00.09,0:01:04.07,Default,,0000,0000,0000,,除以100 就是除以10除了两次
Dialogue: 0,0:01:04.07,0:01:06.31,Default,,0000,0000,0000,,向左移两位
Dialogue: 0,0:01:06.31,0:01:16.57,Default,,0000,0000,0000,,如果是99.061除以100
Dialogue: 0,0:01:16.57,0:01:17.83,Default,,0000,0000,0000,,我这么写
Dialogue: 0,0:01:17.83,0:01:19.05,Default,,0000,0000,0000,,我已经写出来了
Dialogue: 0,0:01:19.05,0:01:20.98,Default,,0000,0000,0000,,如果是除以100
Dialogue: 0,0:01:20.98,0:01:25.77,Default,,0000,0000,0000,,向左移一位是除以10
Dialogue: 0,0:01:25.77,0:01:27.40,Default,,0000,0000,0000,,再移一位
Dialogue: 0,0:01:27.40,0:01:30.81,Default,,0000,0000,0000,,又除以10
Dialogue: 0,0:01:30.81,0:01:41.60,Default,,0000,0000,0000,,那99.061除以100等于0.99061
Dialogue: 0,0:01:41.60,0:01:44.67,Default,,0000,0000,0000,,小数点左移两位
Dialogue: 0,0:01:44.67,0:01:46.59,Default,,0000,0000,0000,,小数点前边要添0
Dialogue: 0,0:01:46.59,0:01:49.62,Default,,0000,0000,0000,,读起来更方便