Decimals in written form (thousandths) (video) | Khan Academy (2024)

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  • Waffles the great!

    9 years agoPosted 9 years ago. Direct link to Waffles the great!'s post “Wait, you can put a comma...”

    Wait, you can put a comma in a decimal problem?!

    (57 votes)

    • Armand van Tonder

      9 years agoPosted 9 years ago. Direct link to Armand van Tonder's post “Yes, you can, and should ...”

      Decimals in written form (thousandths) (video) | Khan Academy (4)

      Decimals in written form (thousandths) (video) | Khan Academy (5)

      Decimals in written form (thousandths) (video) | Khan Academy (6)

      Yes, you can, and should according to most Mathematicians. The standard notation is to use a period as a decimal point, and a comma to separate thousands, millions, billions, etc.
      For example:
      One thousand should be written as 1,000
      One thousand and twelve-hundredths should be written as 1,000.12

      (79 votes)

  • morgank265

    10 years agoPosted 10 years ago. Direct link to morgank265's post “I am In College technical...”

    I am In College technical math and have always used a calculator to do this simple math how do u write 643.30211 in words. know how to write any thing to the left of the decimal in words but when u combine the tenths place with the hundredths place it confuses me

    (18 votes)

    • Haseeb

      10 years agoPosted 10 years ago. Direct link to Haseeb's post “So when you deal with dec...”

      So when you deal with decimals you always have to remember that the first number to the right of the decimal is a tenth. The one after it is a hundreth. Say that you have the fraction 1/10. In words, you can say that 1/10 is one tenth and in decimal form, it is 0.1. I'm not sure if I answered your question but I hope this helped.

      (9 votes)

  • cewe.connor

    4 years agoPosted 4 years ago. Direct link to cewe.connor's post “this confuses me so much”

    this confuses me so much

    (18 votes)

    • vcwilliams

      3 years agoPosted 3 years ago. Direct link to vcwilliams's post “same, this is crazy😝”

      Decimals in written form (thousandths) (video) | Khan Academy (13)

      same, this is crazy😝

      (10 votes)

  • Julie Krall

    8 years agoPosted 8 years ago. Direct link to Julie Krall's post “My son is writing decimal...”

    My son is writing decimals in word form and he did not put the "dash" between the number before the decimal and got it counted wrong. For example, for 85.8 he wrote: eighty five and eight tenths and got it counted wrong because it was suppose to be eighty - five and eight tenths. Do you think this should have been counted wrong? I surely don't! If so please explain your reasoning. Thanks you!

    (13 votes)

    • ecporange689

      8 years agoPosted 8 years ago. Direct link to ecporange689's post “I don't think so, I agree...”

      Decimals in written form (thousandths) (video) | Khan Academy (17)

      I don't think so, I agree with your reasoning. The dash is not really needed, but it's a way to show that the number is "connected" and one number.

      (14 votes)

  • Pranesh Prakashbabu

    4 years agoPosted 4 years ago. Direct link to Pranesh Prakashbabu's post “Do decimal numbers keep g...”

    Do decimal numbers keep going

    And at like

    Decimals in written form (thousandths) (video) | Khan Academy (19) 0:08

    you added a comma in 20,000 so I’m confused

    (8 votes)

    • genny

      4 years agoPosted 4 years ago. Direct link to genny's post “It depends on what kind o...”

      Decimals in written form (thousandths) (video) | Khan Academy (22)

      It depends on what kind of decimal you have. Like if you have 0.5, or one half, it can have infinite zeros after the 5. it would like this: 0.5000000000000000. No matter how many zeros you put after the 0.5 it will not change its value. If you were to add a number in there like this: 0.501000, it is no longer exactly one half. Other numbers like pi have an infinite amount of numbers too. It would look like this: 3.1415926535... (dot dot dots are added to show that the number is a "non terminating decimal")
      I hope that helps

      (11 votes)

  • David Wilson

    5 years agoPosted 5 years ago. Direct link to David Wilson's post “Hi, if you have any quest...”

    Hi, if you have any questions, just ask.

    (8 votes)

    • sing johnson

      5 years agoPosted 5 years ago. Direct link to sing johnson's post “Have you tried watching a...”

      Have you tried watching a video again?
      That might help. :D

      (9 votes)

  • Aways

    10 years agoPosted 10 years ago. Direct link to Aways's post “can we just say for examp...”

    can we just say for example 700.5 seven hundred point five?

    (7 votes)

    • bilbo baggins

      10 years agoPosted 10 years ago. Direct link to bilbo baggins's post “yes, but if you are in a ...”

      yes, but if you are in a purely mathematical scenario, you might want to use seven hundred and five tenths

      (8 votes)

  • Denyce Miller

    11 years agoPosted 11 years ago. Direct link to Denyce Miller's post “what is 3198,001.632 in d...”

    what is 3198,001.632 in decimal work form

    (5 votes)

    • Dayanna Salas Celestino

      8 years agoPosted 8 years ago. Direct link to Dayanna Salas Celestino's post “Three million, one hundre...”

      Decimals in written form (thousandths) (video) | Khan Academy (32)

      Three million, one hundred ninety-eight thousand one and six hundred thirty-two thousanths will be the answer ;)

      (10 votes)

  • jade.k

    a year agoPosted a year ago. Direct link to jade.k's post “alright, what is 7724.944...”

    alright, what is 7724.944 in word form

    (4 votes)

    • naissa.esperance

      a year agoPosted a year ago. Direct link to naissa.esperance's post “Seven thousand seven hund...”

      Seven thousand seven hundred twenty-four and nine tenths and four hundredths and four thousandths (I think) I hope this helps!

      (6 votes)

  • Osleyda Savignon

    6 years agoPosted 6 years ago. Direct link to Osleyda Savignon's post “five hundred and fitty fo...”

    five hundred and fitty four thousandhs

    (4 votes)

Video transcript

So I'm going towrite out a number that we're going to think abouthow we could say or actually write that number. So I'm just goingto write it out. I'm going to resist thetemptation to actually speak it out because that'snormally how I operate. But I'm not going todo that right now. So there's several waysthat we can pronounce. So I encourage you to pauseit and try to pronounce it, yourself. You might not evenneed to pause it. Well, the firstthing that jumps out, well we've got20,000 and then some. So maybe we shouldwrite it that way. So we've got 20,000. 20-- actually letme write it out as numbers first toreally decompose it. So we have 20,000. And then what do wehave on top of that? Well we have 5/10. This is the tenths place. So we can literallywrite that as 5/10. 5/10. Then we have 0, 0/100. I'll write that as ahundredths place just so that we can keep track of it. And then finally,we have 7/1000, that's the 1000th place. So we could writethat, plus 7/1000. So if we would writedown everything that I just spokeout loud, we would say that this is 20-- let mewrite that a little bit neater. This is 20,000. 20,000 and 5/10. And 5-- let me write out theword-- and 5/10 and 7/1000. Now, this isn't theonly way to say this. Another way ofthinking about it is to try to merge the 5/10 and the7/1000 in terms of thousandths. So let's think about this. So we could write thisas-- so once again, we would have our 20,000. But instead of 5/10and 7/1000, let's write our 5/10 interms of thousandths. And the easiest way to do itis to multiply the numerator and denominator,both here, by 100. So then we willhave-- so this 5/10 is the same thingas 500 over 1,000. And the 7/1000 is still 7/1000. And these twocombined are 507/1000. So we could just callthis 20,000 and 507/1000. so let's write that down. So we could just say thisis 20,000 and 507/1000. This is 1/1000, while this rightover here, 1,000, of course, actually represents 1,000. So we got 20 thousands,that's that right over there, and 507/1000.

Decimals in written form (thousandths) (video) | Khan Academy (2024)

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