8498.
Although personally, I would round 8500 to 8000 so as to avoid introducing an upward bias from always round up from 5.
Anything from 2500 to 3499
5500
7.60
1000
0.4
1000
Anything from 2500 to 3499
14000
If a number rounds to 600,000 when rounded to the nearest hundred thousand, it could be any number between 550,000 and 649,999. This is because when rounding to the nearest hundred thousand, any number from 550,000 to 649,999 would round up to 600,000.
3000
0
5500
It is 346,000 rounded to the nearest 1,000
9000
7.60
To round 42365 to the nearest ten thousand, we look at the digit in the ten thousand's place, which is 4. Since the digit to the right of 4 is 2 (less than 5), we keep the 4 as it is and change all digits to the right of it to zero. Therefore, 42365 rounded to the nearest ten thousand is 40000.
1000