You can't round up to a number that's lower than you started. Round up to 50000
To round off 3999 to the nearest hundred, you would look at the digit in the tens place, which is 9. Since 9 is greater than or equal to 5, you would round the hundreds place up by 1. Therefore, 3999 rounded to the nearest hundred is 4000.
4000
4000
4000
It is: 4000 because 40*100 = 4000
It is: 4000
3000
It is 4000.
4000
4000
4,129