[Script Info]
Title: 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:00.72,0:00:06.99,Default,,0000,0000,0000,,We need to calculate 9.005 minus\N3.6, or we could view it
Dialogue: 0,0:00:06.99,0:00:13.07,Default,,0000,0000,0000,,as 9 and 5 thousandths\Nminus 3 and 6 tenths.
Dialogue: 0,0:00:13.07,0:00:15.80,Default,,0000,0000,0000,,Whenever you do a subtracting\Ndecimals problem, the most
Dialogue: 0,0:00:15.80,0:00:18.06,Default,,0000,0000,0000,,important thing, and this is\Ntrue when you're adding decimals as well,
Dialogue: 0,0:00:18.08,0:00:20.57,Default,,0000,0000,0000,,is you have\Nto line up the decimals.
Dialogue: 0,0:00:20.57,0:00:31.88,Default,,0000,0000,0000,,So this is 9.005 minus 3.6.
Dialogue: 0,0:00:31.88,0:00:34.86,Default,,0000,0000,0000,,So we've lined up the decimals,\Nand now we're ready
Dialogue: 0,0:00:34.86,0:00:36.87,Default,,0000,0000,0000,,to subtract.
Dialogue: 0,0:00:36.87,0:00:38.67,Default,,0000,0000,0000,,Now we can subtract.
Dialogue: 0,0:00:38.67,0:00:40.13,Default,,0000,0000,0000,,So we start up here.
Dialogue: 0,0:00:40.13,0:00:41.53,Default,,0000,0000,0000,,We have 5 minus nothing.
Dialogue: 0,0:00:41.53,0:00:44.58,Default,,0000,0000,0000,,You can imagine this 3.6, or\Nthis 3 and 6 tenths. We could
Dialogue: 0,0:00:44.58,0:00:47.87,Default,,0000,0000,0000,,add two zeroes right here, and\Nit would be the same thing as
Dialogue: 0,0:00:47.87,0:00:52.60,Default,,0000,0000,0000,,3 and 600 thousandths, which is\Nthe same thing as 6 tenths.
Dialogue: 0,0:00:52.60,0:00:54.34,Default,,0000,0000,0000,,And when you look at it that\Nway, you'd say, OK, 5 minus 0
Dialogue: 0,0:00:54.34,0:00:57.27,Default,,0000,0000,0000,,is nothing, and you just\Nwrite a 5 right there.
Dialogue: 0,0:00:57.27,0:00:59.00,Default,,0000,0000,0000,,Or you could have said, if\Nthere's nothing there, it
Dialogue: 0,0:00:59.00,0:01:00.74,Default,,0000,0000,0000,,would have been 5 minus\Nnothing is 5.
Dialogue: 0,0:01:00.74,0:01:04.47,Default,,0000,0000,0000,,Then you have 0 minus\N0, which is just 0.
Dialogue: 0,0:01:04.47,0:01:07.60,Default,,0000,0000,0000,,And then you have a 0 minus 6.
Dialogue: 0,0:01:07.60,0:01:10.20,Default,,0000,0000,0000,,And you can't subtract\N6 from 0.
Dialogue: 0,0:01:10.20,0:01:12.82,Default,,0000,0000,0000,,So we need to get something into\Nthis space right here,
Dialogue: 0,0:01:12.82,0:01:14.93,Default,,0000,0000,0000,,and what we essentially are\Ngoing to do is regroup.
Dialogue: 0,0:01:14.93,0:01:21.08,Default,,0000,0000,0000,,We're going to take one 1 from\Nthe 9, so let's do that.
Dialogue: 0,0:01:21.08,0:01:25.12,Default,,0000,0000,0000,,So let's take one 1 from the\N9, so it becomes an 8.
Dialogue: 0,0:01:25.12,0:01:26.67,Default,,0000,0000,0000,,And we need to do something\Nwith that one 1.
Dialogue: 0,0:01:26.67,0:01:28.93,Default,,0000,0000,0000,,We're going to put it\Nin the tenths place.
Dialogue: 0,0:01:28.93,0:01:32.67,Default,,0000,0000,0000,,Now remember, one whole\Nis equal to 10 tenths.
Dialogue: 0,0:01:32.67,0:01:34.33,Default,,0000,0000,0000,,This is the tenths place.
Dialogue: 0,0:01:34.33,0:01:37.27,Default,,0000,0000,0000,,So then this will become 10.
Dialogue: 0,0:01:37.27,0:01:39.24,Default,,0000,0000,0000,,Sometimes it's taught that\Nyou're borrowing the 1, but
Dialogue: 0,0:01:39.24,0:01:41.20,Default,,0000,0000,0000,,you're really taking it, and\Nyou're actually taking 10 from
Dialogue: 0,0:01:41.20,0:01:43.80,Default,,0000,0000,0000,,the place to your left.
Dialogue: 0,0:01:43.80,0:01:46.81,Default,,0000,0000,0000,,So one whole is 10 tenths, we're\Nin the tenths place.
Dialogue: 0,0:01:46.81,0:01:49.74,Default,,0000,0000,0000,,So you have 10 minus 6.
Dialogue: 0,0:01:49.74,0:01:50.80,Default,,0000,0000,0000,,Let me switch colors.
Dialogue: 0,0:01:50.80,0:01:52.80,Default,,0000,0000,0000,,10 minus 6 is 4.
Dialogue: 0,0:01:52.80,0:01:55.82,Default,,0000,0000,0000,,You have your decimal right\Nthere, and then you have 8
Dialogue: 0,0:01:55.82,0:01:58.53,Default,,0000,0000,0000,,minus 3 is 5.
Dialogue: 0,0:01:58.53,0:02:02.53,Default,,0000,0000,0000,,So 9.005 minus 3.6 is 5.405.