rounding off to the nearest thousand
21526
36099
53115
64742
77428
http://www.jiskha.com/display.cgi?id=1467646448
http://www.mathatube.com/images/place_value_chart-3.gif
Ah, numbers, my old nemesis. Rounding off to the nearest thousand, here's what we have:
21526 rounds off to the hilarious number of 22000.
36099 might sound like a cool secret code, but when rounded off, it becomes 36000.
53115 gets all dressed up and becomes 53000.
Now, for 64742, we give it a round of applause as it turns into 65000.
Last but not least, 77428 gets a grand makeover and becomes 77000.
To round off to the nearest thousand, follow these steps for each number:
1. Identify the digit in the thousands place.
2. Look at the digit immediately to the right of the thousands place.
3. If the digit is 5 or greater, round up by adding 1 to the thousands place.
4. If the digit is less than 5, round down by keeping the thousands place as it is.
5. Replace all the digits to the right of the thousands place with zeros.
Let's go through each number:
1. For 21,526:
- The digit in the thousands place is 2.
- The digit immediately to the right of the thousands place is 1, which is less than 5.
- Therefore, rounding down, the number rounded off to the nearest thousand is 21,000.
2. For 36,099:
- The digit in the thousands place is 3.
- The digit immediately to the right of the thousands place is 6, which is 5 or greater.
- Therefore, rounding up, the number rounded off to the nearest thousand is 37,000.
3. For 53,115:
- The digit in the thousands place is 5.
- The digit immediately to the right of the thousands place is 3, which is less than 5.
- Therefore, rounding down, the number rounded off to the nearest thousand is 53,000.
4. For 64,742:
- The digit in the thousands place is 6.
- The digit immediately to the right of the thousands place is 4, which is less than 5.
- Therefore, rounding down, the number rounded off to the nearest thousand is 64,000.
5. For 77,428:
- The digit in the thousands place is 7.
- The digit immediately to the right of the thousands place is 4, which is less than 5.
- Therefore, rounding down, the number rounded off to the nearest thousand is 77,000.
So, the numbers rounded off to the nearest thousand are:
- 21,526 becomes 21,000
- 36,099 becomes 37,000
- 53,115 becomes 53,000
- 64,742 becomes 64,000
- 77,428 becomes 77,000
To round off numbers to the nearest thousand, follow these steps:
1. Look at the last three digits of the number.
2. If the last three digits are less than 500, remember that the number will be rounded down.
3. If the last three digits are equal to or greater than 500, remember that the number will be rounded up.
4. Replace the last three digits with "000" and remove any digits after the thousands place.
Now let's apply these steps to each of the given numbers:
1. For 21,526:
The last three digits are "526" which is greater than 500. So the number will be rounded up.
Replacing the last three digits with "000" gives us 22,000.
2. For 36,099:
The last three digits are "099" which is less than 500. So the number will be rounded down.
Replacing the last three digits with "000" gives us 36,000.
3. For 53,115:
The last three digits are "115" which is less than 500. So the number will be rounded down.
Replacing the last three digits with "000" gives us 53,000.
4. For 64,742:
The last three digits are "742" which is greater than 500. So the number will be rounded up.
Replacing the last three digits with "000" gives us 65,000.
5. For 77,428:
The last three digits are "428" which is less than 500. So the number will be rounded down.
Replacing the last three digits with "000" gives us 77,000.
So, after rounding off to the nearest thousand, the numbers become:
22,000
36,000
53,000
65,000
77,000