42,300 rounded off to the nearest 1000 is :
42,000
To round off a number to its nearest thousand we check the last three digits of the number. In case the number formed by these is 500 or above, we round up the number to the higher value (nearest higher multiple of 1000) and in case the number is less than 500, we round it down to the lower value. (nearest lower multiple of 1000)
The given number is 42300. Our options are 42000 and 43000. The last three digits of 42300 are 300.
300 < 500.
Therefore 42300 when rounded off to the nearest thousand is 42000.