WEBVTT 00:00:00.000 --> 00:00:00.490 我们需要将1.03075 除成0.25 00:00:00.490 --> 00:00:07.760 要是除数是小数，第一件事是把除数 00:00:07.760 --> 00:00:11.260 那个你要除的号码 00:00:11.260 --> 00:00:13.690 乘以十 00:00:13.690 --> 00:00:17.850 让它成为整数 00:00:17.850 --> 00:00:19.990 那你就能把小数点向右边移。 00:00:19.990 --> 00:00:21.220 00:00:21.220 --> 00:00:23.620 你每将一个号码乘以十 00:00:23.620 --> 00:00:26.170 等于你把小数点向右边移一次。 00:00:26.170 --> 00:00:27.620 根据这个例子，我们要把小数点 00:00:27.620 --> 00:00:29.310 向右边移一次，两次。 00:00:29.310 --> 00:00:34.690 所以0.25乘10两次就等于0.25乘一百， 00:00:34.690 --> 00:00:38.190 我们就把0.25变成25. 00:00:38.190 --> 00:00:41.250 如果你对除数这么做，那你也需要 00:00:41.250 --> 00:00:42.860 对 00:00:42.860 --> 00:00:43.920 00:00:43.920 --> 00:00:47.220 00:00:47.220 --> 00:00:49.190 00:00:49.190 --> 00:00:50.560 00:00:50.560 --> 00:00:52.680 00:00:52.680 --> 00:00:55.440 00:00:55.440 --> 00:00:57.180 00:00:57.180 --> 00:01:00.700 00:01:00.700 --> 00:01:14.840 00:01:14.840 --> 00:01:21.310 00:01:21.310 --> 00:01:25.650 00:01:25.650 --> 00:01:28.590 00:01:28.590 --> 00:01:30.960 00:01:30.960 --> 00:01:34.750 00:01:34.750 --> 00:01:35.760 00:01:35.760 --> 00:01:38.670 00:01:38.670 --> 00:01:41.040 00:01:41.040 --> 00:01:42.720 00:01:42.720 --> 00:01:45.400 00:01:45.400 --> 00:01:48.050 00:01:48.050 --> 00:01:52.200 00:01:52.200 --> 00:01:53.400 00:01:53.400 --> 00:01:55.520 00:01:55.520 --> 00:01:57.240 00:01:57.240 --> 00:01:57.910 00:01:57.910 --> 00:01:59.340 00:01:59.340 --> 00:02:00.480 00:02:00.480 --> 00:02:03.330 00:02:03.330 --> 00:02:05.040 00:02:05.040 --> 00:02:17.590 00:02:17.590 --> 00:02:20.130 00:02:20.130 --> 00:02:22.160 00:02:22.160 --> 00:02:22.580 00:02:22.580 --> 00:02:26.430 00:02:26.430 --> 00:02:29.720 00:02:29.720 --> 00:02:32.560 00:02:32.560 --> 00:02:35.520 00:02:35.520 --> 00:02:38.160 00:02:38.160 --> 00:02:41.660 00:02:41.660 --> 00:02:43.810 00:02:43.810 --> 00:02:45.750 00:02:45.750 --> 00:02:48.410 00:02:48.410 --> 00:02:51.400 00:02:51.400 --> 00:02:53.880 00:02:53.880 --> 00:02:56.540 00:02:56.540 --> 00:02:59.840 00:02:59.840 --> 00:03:00.990 00:03:00.990 --> 00:03:02.600 00:03:02.600 --> 00:03:04.130 00:03:04.130 --> 00:03:05.590 00:03:05.590 --> 00:03:11.920 00:03:11.920 --> 00:03:14.100 00:03:14.100 --> 00:03:16.640 00:03:16.640 --> 00:03:20.710 00:03:20.710 --> 00:03:22.210 00:03:22.210 --> 00:03:23.070 00:03:23.070 --> 00:03:25.400 00:03:25.400 --> 00:03:27.930 00:03:27.930 --> 00:03:30.730 00:03:30.730 --> 00:03:31.980 00:03:31.980 --> 00:03:34.010 00:03:34.010 --> 00:03:36.690 00:03:36.690 --> 00:03:43.970 00:03:43.970 --> 00:03:46.550 00:03:46.550 --> 00:03:48.510 00:03:48.510 --> 00:03:49.140 00:03:49.140 --> 00:03:50.410 00:03:50.410 --> 00:03:51.570 00:03:51.570 --> 00:03:53.350 00:03:53.350 --> 00:03:55.200 00:03:55.200 --> 00:03:59.250 00:03:59.250 --> 00:04:02.860 00:04:02.860 --> 00:04:06.270 00:04:06.270 --> 00:04:08.780 00:04:08.780 --> 00:04:11.940 00:04:11.940 --> 00:04:15.130 00:04:15.130 --> 00:04:16.940 00:04:16.940 --> 00:04:19.950 00:04:19.950 --> 00:04:21.760 00:04:21.760 --> 00:04:24.360 00:04:24.360 --> 00:04:28.280 00:04:28.280 --> 00:04:34.150 00:04:34.150 --> 00:04:36.610 00:04:36.610 --> 00:04:39.390 00:04:39.390 --> 00:04:40.240 00:04:40.240 --> 00:04:40.980 00:04:40.980 --> 00:04:41.920 00:04:41.920 --> 00:04:44.960 00:04:44.960 --> 00:04:46.260 00:04:46.260 --> 00:04:51.540 00:04:51.540 --> 00:04:59.110 00:04:59.110 --> 00:05:02.100 00:05:02.100 --> 00:05:04.080 00:05:04.080 --> 00:05:05.740 00:05:05.740 --> 00:05:07.920 00:05:07.920 --> 00:05:16.600 00:05:16.600 --> 00:05:21.520 00:05:21.520 --> 00:05:24.580 00:05:24.580 --> 00:05:29.730 00:05:29.730 --> 00:05:31.340 00:05:31.340 --> 00:05:31.399