how do you get the same number in multiplication but not in addition so basically 1 is like plus 0 in multiplication?

Multiplying by one is like saying "I have one set of this" so, in a way, yes, you're right, but it isn't a very good idea to think like that, because it will cause you to get confused later on.

why are questions less and videos more. i didnt like it

Yeah. I don't like it too. Maybe there is more videos to prepare you more to your path to mastery.

Why does he sometimes use the dot for the multiplication symbol?

The reason why he uses the dot, is because of algebra. Once you get into algebra you stop using an x for multiplication, because it gets confusing when you have variables, which you do most of the time in algebra. The most common letter to use as a variable is an x, so 8xx is very confusing.

what happens if it is 56'2

56 times 2 = (50+6) times 2 = (50 times 2) + (6 times 2) = (100) + (12) = 112; something times 2 is double the something, like 4*2 = 8; "double it" should not be confused with "doublet." ;)

The identity property of 1 is trying to tell you that *any* number multiplied with 1 retains its identity. In other words, its value does not change. Hope this helps.

Feels like Sal is teaching us multiplication?

The identity property of 1 is based on what happens when you multiply with 1. It basically is trying to show you that any number multiplied by 1 will = the original number (its identity is not changed).

If you multiply a value by -1, would it still be considered the Identity Property of Multiplication?

No because it changes the value of the number

how is it that the dot is a other way for mulitiplcation.

Because when you have parentheses it will look like you are doing the variable "x". Doing a dot will assure that you are multiplying.

Main content

Class 6 math (India)

Course: Class 6 math (India) > Unit 2

Lesson 6: Identity properties of 0 and 1

Identity property of 1

Name: Identity property of 1
Uploaded: 2011-02-20T16:39:04Z
Description: The identity property of 1 says that any number multiplied by 1 keeps its identity. In other words, any number multiplied by 1 stays the same. The reason the number stays the same is because multiplying by 1 means we have 1 copy of the number. For example, 32x1=32.

Google Classroom

The identity property of 1 says that any number multiplied by 1 keeps its identity. In other words, any number multiplied by 1 stays the same. The reason the number stays the same is because multiplying by 1 means we have 1 copy of the number. For example, 32x1=32. Created by Sal Khan and Monterey Institute for Technology and Education.

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how do you get the same number in multiplication but not in addition so basically 1 is like plus 0 in multiplication?
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- Starstealer
  Posted 11 years ago. Direct link to Starstealer's post “Multiplying by one is lik...”
  Multiplying by one is like saying "I have one set of this" so, in a way, yes, you're right, but it isn't a very good idea to think like that, because it will cause you to get confused later on.
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kartikfbd1234
Posted 7 years ago. Direct link to kartikfbd1234's post “why are questions less an...”
why are questions less and videos more. i didnt like it
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- ultraidiotboy
  Posted 7 years ago. Direct link to ultraidiotboy's post “Yeah. I don't like it too...”
  Yeah. I don't like it too. Maybe there is more videos to prepare you more to your path to mastery.
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Matthew Stokes
Posted 6 years ago. Direct link to Matthew Stokes's post “Why does he sometimes use...”
Why does he sometimes use the dot for the multiplication symbol?
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- dlschwartz
  Posted 6 years ago. Direct link to dlschwartz's post “The reason why he uses th...”
  The reason why he uses the dot, is because of algebra. Once you get into algebra you stop using an x for multiplication, because it gets confusing when you have variables, which you do most of the time in algebra. The most common letter to use as a variable is an x, so 8xx is very confusing.
  Button navigates to signup page
  (5 votes)
Nemistriborg
Posted 6 years ago. Direct link to Nemistriborg's post “What does it do”
What does it do
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- Kim Seidel
  Posted 6 years ago. Direct link to Kim Seidel's post “The identity property of ...”
  The identity property of 1 is trying to tell you that any number multiplied with 1 retains its identity. In other words, its value does not change.
  Hope this helps.
  Button navigates to signup page
  (6 votes)
Tirth
Posted 7 years ago. Direct link to Tirth's post “Feels like Sal is teachin...”
Feels like Sal is teaching us multiplication?
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(3 votes)
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- Kim Seidel
  Posted 7 years ago. Direct link to Kim Seidel's post “The identity property of ...”
  The identity property of 1 is based on what happens when you multiply with 1. It basically is trying to show you that any number multiplied by 1 will = the original number (its identity is not changed).
  Button navigates to signup page
  (6 votes)
martinez.gua
Posted 12 years ago. Direct link to martinez.gua's post “what happens if it is 56'...”
what happens if it is 56'2
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- Exponentially Radical
  Posted 11 years ago. Direct link to Exponentially Radical's post “56 times 2 = (50+6) times...”
  56 times 2 = (50+6) times 2 = (50 times 2) + (6 times 2) = (100) + (12) = 112;
  something times 2 is double the something, like 4*2 = 8;
  "double it" should not be confused with "doublet." ;)
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  (4 votes)
Dylan Chan
Posted 4 years ago. Direct link to Dylan Chan's post “If you multiply a value b...”
If you multiply a value by -1, would it still be considered the Identity Property of Multiplication?
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- David Severin
  Posted 4 years ago. Direct link to David Severin's post “No because it changes the...”
  No because it changes the value of the number
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kaylee.mendoza
Posted 7 years ago. Direct link to kaylee.mendoza's post “how is it that the dot is...”
how is it that the dot is a other way for mulitiplcation.
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- jasmine-craddock
  Posted 7 years ago. Direct link to jasmine-craddock's post “Because when you have par...”
  Because when you have parentheses it will look like you are doing the variable "x". Doing a dot will assure that you are multiplying.
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  (4 votes)
AMLB
Posted 5 years ago. Direct link to AMLB's post “Why does he makes this so...”
Why does he makes this so complicated I am switching curriculums next year ugh
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Video transcript

We're asked to multiply 65 times 1. So literally, we just need to multiply 65-- we could write it is a times sign like that or we could write it as a dot like that-- but this means 65 times 1. And there's two ways to interpret this. You could view this as the number 65 one time or you could view this as the number 1 sixty-five times, all added up. But either way, if you have one 65, this is literally just going to be 65. Anything times 1 is going to be that anything, whatever this is. Whatever this is times 1 is going to be that same thing again. If I have just some kind of placeholder here times 1, and I could even write it as the times symbol times 1, that's going to be that same placeholder. So if I have 3 times 1, I'm going to get 3. If I have 5 times 1, I'm going to get 5, because literally, all this is saying is 5 one time. If I put-- I don't know-- 157 times 1, that'll be 157. I think you get the idea.