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Current time:0:00Total duration:3:02

CCSS.Math:

so as some of you already know I really enjoy eating a good avocado which despite its appearance that it looks like a vegetable but it's actually a fruit and let's say that I eat two avocados per day and I eat two avocados per day for six days now there's a couple of ways that I can think about how many avocados did I eat I could say hey I eat 2 a day and I'm going to do that for six days so I'm gonna add six twos together so that'll be 2 plus 2 plus 2 plus 2 plus 2 plus 2 I have six twos right over there and then I can add them together and we could say 2 plus 2 is 4 you add another 2 you get 2 6 you add another 2 you get 2 8 yet another do to get to 10 yet another 2 you get to 12 and that all is fine but there's an easier way to express this repeated addition one way is to view it as multiplication instead of just writing out six twos and adding them together mathematicians have come up with a neater way of writing that let's say okay we're going to add up a bunch of two's how many twos are we going to add up we're going to have six of those twos and we need to come up with some type of a symbol for it so we will use this X looking thing and so six times two can be viewed as repeated addition in exactly this same way so 6 times 2 would be equal to 12 and we could go the other way around if someone were to ask you what is 4 times 3 pause this video and see if you can write it out as repeated addition like we saw up here well one way to interpret this is to say this is 4 threes so we could say this is equal to 3 plus 3 plus 3 plus 3 and 3 plus 3 is 6 6 plus 3 is 9 9 plus 3 is equal to 12 you might be familiar skip counting and you would say 3 6 9 12 just out of curiosity what do you think 3 times 4 is going to be pauses and try to represent it as repeated in addition and then see what you come up with well we can interpret this as three fours and so we could say this is going to be 4 plus 4 plus 4 and if we skip count fours we'd have 4 8 12 I was about to go to 16 4 8 12 so this is going to be 12 so this is interesting at least for this example for these two examples I got to the same thing 4 times 3 got me the same result as 3 times 4 interesting I wonder if that's always true but anyway big picture from this video is that you can view multiplication as repeated addition