There lots of such numbers. 1000 itself, for a start.
27222722
To do front end rounding with odd numbers, you round up to the nearest even number. For example, if you have the odd number 7 and you want to do front end rounding to the nearest ten, you round up to the nearest even ten, which is 10.
56287489.0
5.18
9 is already rounded to the nearest unit, so rounding to a tenth makes no difference.
2722
213
The number would be 2666. 6 is repeated 3 times. Rounded to the nearest hundred is 2700 and rounded to the nearest thousand is 3000.
642
27222722
To do front end rounding with odd numbers, you round up to the nearest even number. For example, if you have the odd number 7 and you want to do front end rounding to the nearest ten, you round up to the nearest even ten, which is 10.
24 is already a whole number, so rounding makes no difference. The answer is 24.
Rounding does away with unnecessary detail and thereby makes calculations easier.
56287489.0
When rounding 6.153 to the nearest whole number, you look at the digit in the thousandths place, which is 3. Since 3 is less than 5, you would round down. Therefore, 6.153 rounded to the nearest whole number is 6.
Well, honey, when rounding 4.2 to the nearest tenth, you look at the digit in the hundredths place, which is 2. Since 2 is less than 5, you keep the tenths place as it is, making it 4.2. So, the number that makes 4.2 when rounded to the nearest tenth is 4.2.
5.18