who created decimals?

Decimals were created by the Chinese at the end of 4th century BCE

can you get points for doing good work :\

Do you mean Khan Academy's energy points? If so, yes! You'll get energy points for doing practice problems and watching videos. :)

how do you get this down so fast i cant understand a bit!

Keep trying and you will get it down...like they always say ¨Practice makes perfect:)¨

These seem really easy... am I missing something? If not, I look forward to the unit test! Can you make these a bit harder?

I say don't push your luck. unit tests can get harder and if you do decimals with heart or, as a matter of fact, you do anything with heart it becomes easy.

can i have harder work please

What you want harder work this is hard for me bro

when was decimals first used in history?🤔

*4th Century BC* The first decimal system was introduced in the 4th Century BC by the Sumerians of Mesopotamia, to whom the invention of writing is credited. They based their numerical system on powers of 60 subdivided into multiples of 10.

how do i spend energy points?

You cannot spend energy points, however, if you get enough of them, you can earn some neat badges!

Main content

5th grade

Course: 5th grade > Unit 1

Lesson 1: Decimal place value intro

Decimal place value review

Google Classroom

Review decimal place value, and try some practice problems.

Place value chart

The number

87.654

can be placed on a place value chart as follows:

Tens	Ones	.	Tenths	Hundredths	Thousandths
$8$ ‍	$7$ ‍	$.$ ‍	$6$ ‍	$5$ ‍	$4$ ‍

Decimal place value

The first digit after the decimal represents the tenths place. The next digit after the decimal represents the hundredths place. The remaining digits continue to fill in the place values until there are no digits left.

Example: $0.81$ ‍

The number

0. 81

is made up of

8

tenths and

1

hundredth.

We can also write this as:

0. 81 = 0.8 + 0.01

0. 81 = \frac{8}{10} + \frac{1}{100}

Or we can use a place value chart:

Ones	.	Tenths	Hundredths
$0$ ‍	$.$ ‍	$8$ ‍	$1$ ‍

Want to learn more about decimal place value? Check out this video.

Want to review whole number place value? Check out this article.

Practice

Problem 1

The digit $9$ ‍ in which number represents a value of $0.009$ ‍?

Want to try more problems like this? Check out these exercises:
Decimal place value names
Value of a decimal digit

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De La Rosa.Camila
Posted 5 years ago. Direct link to De La Rosa.Camila's post “who created decimals?”
who created decimals?
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- Galleta
  Posted a year ago. Direct link to Galleta's post “Decimals were created by ...”
  Decimals were created by the Chinese at the end of 4th century BCE
  Comment on Galleta's post “Decimals were created by ...”
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Gabriella Spiker
Posted 7 years ago. Direct link to Gabriella Spiker's post “how do you get this down ...”
how do you get this down so fast i cant understand a bit!
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(52 votes)
Answer
- LILYW
  Posted 3 years ago. Direct link to LILYW's post “Keep trying and you will ...”
  Keep trying and you will get it down...like they always say ¨Practice makes perfect:)¨
  Comment on LILYW's post “Keep trying and you will ...”
  (99 votes)
Tyler M
Posted 3 years ago. Direct link to Tyler M's post “can you get points for do...”
can you get points for doing good work
:\
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(57 votes)
Answer
- Evan
  Posted 3 years ago. Direct link to Evan's post “Do you mean Khan Academy'...”
  Do you mean Khan Academy's energy points? If so, yes! You'll get energy points for doing practice problems and watching videos. :)
  Comment on Evan's post “Do you mean Khan Academy'...”
  (53 votes)
Hayden Linyard
Posted 5 years ago. Direct link to Hayden Linyard's post “These seem really easy......”
These seem really easy... am I missing something? If not, I look forward to the unit test! Can you make these a bit harder?
Button navigates to signup pageComment on Hayden Linyard's post “These seem really easy......”
(39 votes)
Answer
- Albatross Prime
  Posted 3 years ago. Direct link to Albatross Prime's post “I say don't push your luc...”
  I say don't push your luck. unit tests can get harder and if you do decimals with heart or, as a matter of fact, you do anything with heart it becomes easy.
  Comment on Albatross Prime's post “I say don't push your luc...”
  (45 votes)
Caroline Thompson
Posted 3 years ago. Direct link to Caroline Thompson's post “when was decimals first u...”
when was decimals first used in history?🤔
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(16 votes)
Answer
- ℙ𝕒𝕥𝕣𝕚𝕔𝕜
  Posted 3 years ago. Direct link to ℙ𝕒𝕥𝕣𝕚𝕔𝕜's post “*4th Century BC* The firs...”
  4th Century BC
  The first decimal system was introduced in the 4th Century BC by the Sumerians of Mesopotamia, to whom the invention of writing is credited. They based their numerical system on powers of 60 subdivided into multiples of 10.
  Comment on ℙ𝕒𝕥𝕣𝕚𝕔𝕜's post “*4th Century BC* The firs...”
  (38 votes)
Lucas
Posted a year ago. Direct link to Lucas's post “like and subscribe for 10...”
like and subscribe for 10000 years of good luck
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(26 votes)
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- JaceF
  Posted 8 months ago. Direct link to JaceF's post “huh why”
  huh why
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shiloh5B
Posted 3 months ago. Direct link to shiloh5B's post “can i have harder work pl...”
can i have harder work please
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(18 votes)
Answer
- ElianaRivera
  Posted 2 months ago. Direct link to ElianaRivera's post “What you want harder work...”
  What you want harder work this is hard for me bro
  Comment on ElianaRivera's post “What you want harder work...”
  (3 votes)
landon.smallwood
Posted 3 months ago. Direct link to landon.smallwood's post “This does not make one bi...”
This does not make one bit of sense because THERE NO VIDEO ON HOW TO WRITE IT SO I GOT TWO WRONG
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- _-Please_up_vote_me-_
  Posted 2 months ago. Direct link to _-Please_up_vote_me-_'s post “Just retry it Np”
  Just retry it Np
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  (11 votes)
kcoombs861
Posted 3 years ago. Direct link to kcoombs861's post “i put in 6 tenths but it ...”
i put in 6 tenths but it says WRONG
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- ZoeB
  Posted 8 months ago. Direct link to ZoeB's post “For real tho”
  For real tho
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28jmoya
Posted 3 years ago. Direct link to 28jmoya's post “how do i spend energy poi...”
how do i spend energy points?
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Answer
- ℙ𝕒𝕥𝕣𝕚𝕔𝕜
  Posted 3 years ago. Direct link to ℙ𝕒𝕥𝕣𝕚𝕔𝕜's post “You cannot spend energy p...”
  You cannot spend energy points, however, if you get enough of them, you can earn some neat badges!
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