Answer:
1. 60 // It can be found between whole numbers 63 and 65.
2. 10 // It can be found between whole numbers 6 and 8.
3. 20 // It can be found between whole numbers 18 and 20.
Explanation:
Rounding rules of rounding up if the next place is 5-9, or rounding down if the next place is 0-4.