How do you round 247,499 to the nearest thousand?

247000

If the was 247599 than you can write it as 248000.The values less than 5,50,500,5000....... Cannot be added to previous number for rounding it.For example: 0.1 , 0.2 , 0.3 , 0.4 cannot be written as a whole number 1, but 0.5 , 0.6 , 0.7 , 0.8 and 0.9 can be written as 1.