If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

મુખ્ય વિષયવસ્તુ
વર્તમાન સમય:0:00કુલ સમયગાળો :2:59

વિડિઓ ટ્રાન્સક્રિપ્ટ

hey Sal hello Britt I picked this up at a garage sale and I know you like colors I love colors colorful shirts every day and I thought you might like this I do this is very colicky so what are you hoping to do with this thing well that minimum just made me represent numbers with track of numbers I know counting the days are one two three I could imagine doing that okay so moving the beat down as a number great yeah that's tears there's ten ten there so then maybe that'd be 20 30 40 50 60 70 80 90 hundred yeah you could count a hundred beads to keep track of things what if I need to count one hundred and five or six do I need to buy another one I don't even know where to get more of them that would be an option I guess maybe not knobs if you don't know where to get it let's see well you know the different colors you know just like we have different forms of currency maybe we can have each of these each of these each of these colors or maybe the columns they represent a different amount so this is 10 right over here but what if we had one of these red beads represent 10 of these blue beads in this first column so then you could go this would be 10 or you could say that is 10 so there's two representations of tenure on yeah the way we just worked it out here yeah okay and then 11 would be that okay and this is 21 21 yeah you have two tens and a one 21 the wooden color is going to represent all of the red beads yeah each of one of these yeah that's a that's a good system if each column represents represents 10 of the beads to the column to its right okay that could be interesting because if this represents 10 red beads that's 10 tens that would be equivalent this is equivalent to a hundred blue beads and so this would be equivalent to ten of the brown beads which would be a hundred of the red beads which would be a thousand of the blue beads and this would be ten thousand of the blue beads and this would be a hundred thousand of the other blue beads this would be a million the movies and we're going to be able to represent all the numbers in between one and say a million I think we can let's just let me just give you another see how you out about fifteen thousand and three so let's think a little bit about this so let's let's try with the big numbers first so see each of these is one each of these is ten do these is a hundred each of these is a thousand I don't have 15 of these but these are ten thousand each of these are ten thousands this is one ten thousand and then I could do five thousands one two three four five so this is fifteen thousand so one ten thousand five thousands then zero hundreds zero tens and then throw a three there so 15,000 and three