It's already there.
Round 69 to the nearest ten is 70.
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.
The answer is 70
Zero
It is: 0.6
600
600
It is 80.9
360
2.9
1.54
It is: 8