10 rounded to the nearest tens place is: 10. This is because the ones value is "0" so it does not round up.
1.54
Look at the digit in the ones place. It is a 7. That will round up the number, so will increment the 6, giving 870 as the result.
200
63546 rounded to the nearest ten is 63550.
Zero
It is 80.9
600
600
It is: 0.6
10 rounded to the nearest tens place is: 10. This is because the ones value is "0" so it does not round up.
2.9
It is: 8
It's already there.
1.54
500
520