Answer:
1) 480000
2)500000
3)475000
Explanation:
To round it to the nearest 1000 you would find the 1000s digit which is 5 and look at the digit to the right and if it is under 5 than the 1000s digit stays the same and everything to the right turns to a zero so than you can apply that concept to the rest of the problems so you get
1) 480000
2)500000
3)475000