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Lesson 7: Rounding decimals

# Rounding decimals on the number line

Learn how to round decimals using a number line, visually showing which whole number, tenth, hundredth, or thousandth is closest. Building off intuition of rounding rules and connect rounding to the nearest place value on the number line.

## Want to join the conversation?

• how can we round a decimal to one and nearest hundredth.
• it's impossible without point A
• how do we round to the ten thousand place
• Hi!
This is how it would work
To round numbers to the nearest ten thousand, make the numbers whose last four digits are 0001 through 4999 into the next lower number that ends in 0000. For example 54,424 rounded to the nearest ten thousand would be 50,000.
Hope This Helps!
• Did anyone else lose Sal's cursor at /?
• I don't know where it went
• These video’s literally never help me
• these videos do not help me he need to explain better
• You can get a new avatar
• My promblem didn't have the blue lines for the tenths, so i was a little confused. But your video helped a lot and i love Khan Academy soooooooooooooooooooo much!!💙🙂
• he it is my braeden you friend I didn't know you were on here
• how do we round decimals to nearest tenth
• So say you had 359, we no that the 5 is the tens place so we look one way to the right and that is 9,(because 9 is 5 or larger we will round up to then nearest ten) = 360.
However if the number was 344 we would round down to the nearest ten (Because 4 is 5 or bellow) = 340
Let's do another one that is a bit different,
236.986 round to the nearest ten(It is important to remember that tens is before the decimal point and tenths is after the decimal point)
= 240, why? because we had the number 236 and 6 is larger than 5 so we round up, why did we get rid of the decimal points? Well this applies in all cases if you were to round 26,345 to the nearest thousand it would be 27,000, because you only focusing on the thousands but nothing else.

(If you still don't understand watch this video:
Worked example: rounding decimal to the nearest tenth.
(If you have any more questions do ask)