[Script Info] Title: [Events] Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text Dialogue: 0,0:00:00.81,0:00:05.74,Default,,0000,0000,0000,,Let's think about what it means to add numbers. Dialogue: 0,0:00:05.74,0:00:14.67,Default,,0000,0000,0000,,So let's start with one. \NOne plus -- one plus one. Dialogue: 0,0:00:14.67,0:00:18.30,Default,,0000,0000,0000,,What is this going to be equal to? Dialogue: 0,0:00:19.21,0:00:24.10,Default,,0000,0000,0000,,One way to think about this is \Nwe have one thing. Dialogue: 0,0:00:24.10,0:00:28.95,Default,,0000,0000,0000,,And I will -- that thing will be a purple circle. Dialogue: 0,0:00:28.95,0:00:31.50,Default,,0000,0000,0000,,So let me put that here. Dialogue: 0,0:00:31.50,0:00:33.43,Default,,0000,0000,0000,,So that's this 1 thing. Dialogue: 0,0:00:33.43,0:00:35.51,Default,,0000,0000,0000,,I'm just going to represent it with a purple circle. Dialogue: 0,0:00:35.53,0:00:37.48,Default,,0000,0000,0000,,And I'm going to add another 1 thing. Dialogue: 0,0:00:37.48,0:00:40.07,Default,,0000,0000,0000,,And since this is in blue, \NI'll make that other circle. Dialogue: 0,0:00:40.07,0:00:41.84,Default,,0000,0000,0000,,I'll make that in blue as well. Dialogue: 0,0:00:42.28,0:00:44.80,Default,,0000,0000,0000,,So, let me put that right over here. Dialogue: 0,0:00:45.31,0:00:48.18,Default,,0000,0000,0000,,So, 1 plus 1. 1 plus 1. Dialogue: 0,0:00:48.38,0:00:51.64,Default,,0000,0000,0000,,How many total circles do I now have? Dialogue: 0,0:00:51.85,0:00:54.53,Default,,0000,0000,0000,,Well, I now have 2 circles. Dialogue: 0,0:00:55.03,0:00:57.67,Default,,0000,0000,0000,,I now have 2 circles. Dialogue: 0,0:00:57.99,0:01:04.23,Default,,0000,0000,0000,,1 plus 1 is equal to 2. Dialogue: 0,0:01:04.65,0:01:07.91,Default,,0000,0000,0000,,OK, you're saying, "All right, Sal, that makes sense." Dialogue: 0,0:01:07.92,0:01:11.17,Default,,0000,0000,0000,,Let's do this with larger numbers. Dialogue: 0,0:01:11.42,0:01:14.94,Default,,0000,0000,0000,,So let's say we want to know what equals-- Dialogue: 0,0:01:14.95,0:01:18.67,Default,,0000,0000,0000,,and I'll put a question mark over here. \NSo, question mark. Dialogue: 0,0:01:19.01,0:01:20.78,Default,,0000,0000,0000,,What equals -- Dialogue: 0,0:01:20.79,0:01:34.03,Default,,0000,0000,0000,,So something is equal to, let's say, 2, 2, 2 plus 3. Dialogue: 0,0:01:34.03,0:01:38.08,Default,,0000,0000,0000,,Something is equal to 2 plus 3. Dialogue: 0,0:01:38.08,0:01:41.43,Default,,0000,0000,0000,,What is this something going to be? Dialogue: 0,0:01:41.75,0:01:45.53,Default,,0000,0000,0000,,And I encourage you to pause the video \Nand think about it on your own. Dialogue: 0,0:01:46.23,0:01:48.88,Default,,0000,0000,0000,,Well, you can view this as, \NI have 2 objects, Dialogue: 0,0:01:48.88,0:01:51.13,Default,,0000,0000,0000,,and then I am going to add\Nanother 3 objects. Dialogue: 0,0:01:51.13,0:01:54.12,Default,,0000,0000,0000,,How many total objects would I have? Dialogue: 0,0:01:54.12,0:02:01.06,Default,,0000,0000,0000,,So you have your 2 objects, \Nwhich I'll use purple circles again. Dialogue: 0,0:02:01.07,0:02:02.43,Default,,0000,0000,0000,,So let me -- Dialogue: 0,0:02:02.99,0:02:09.40,Default,,0000,0000,0000,,Let me, so we have 1 and 2 purple circles. Dialogue: 0,0:02:09.40,0:02:11.07,Default,,0000,0000,0000,,This is the 2 right over here. Dialogue: 0,0:02:11.07,0:02:14.07,Default,,0000,0000,0000,,And then to that, \Nwe're going to add 3 more. Dialogue: 0,0:02:14.08,0:02:15.66,Default,,0000,0000,0000,,3 more circles. Dialogue: 0,0:02:15.66,0:02:19.77,Default,,0000,0000,0000,,And I'll represent those in blue, \Nbecause we wrote the 3 there in blue. Dialogue: 0,0:02:20.16,0:02:28.37,Default,,0000,0000,0000,,So that is 1, 2, and 3. Dialogue: 0,0:02:29.54,0:02:33.21,Default,,0000,0000,0000,,So how many total circles do we now have? Dialogue: 0,0:02:33.71,0:02:38.60,Default,,0000,0000,0000,,Well, we can count them. \NWe have 1,2,3,4,5. Dialogue: 0,0:02:38.60,0:02:45.02,Default,,0000,0000,0000,,In fact, let me count that. \N1,2,3,4,5 circles. Dialogue: 0,0:02:45.28,0:02:46.81,Default,,0000,0000,0000,,So 2 plus 3 Dialogue: 0,0:02:46.81,0:02:50.80,Default,,0000,0000,0000,,2 things plus another 3 things \Nare 5 things. Dialogue: 0,0:02:50.80,0:02:54.80,Default,,0000,0000,0000,,So our question mark over here \Nis equal to 5. Dialogue: 0,0:02:55.05,0:02:56.82,Default,,0000,0000,0000,,So, instead of writing the question mark Dialogue: 0,0:02:56.82,0:02:59.70,Default,,0000,0000,0000,,right over here, let me clear that out. Dialogue: 0,0:02:59.70,0:03:02.24,Default,,0000,0000,0000,,I could say 5 is equal to -- Dialogue: 0,0:03:02.73,0:03:09.73,Default,,0000,0000,0000,,I could write down that 5 \Nis equal to 2 plus 3.