A hiking trail is 15 kilometers. You have hiked 8.5 kilometers. How much farther to go?
Answer
6.5 kilometers
How to solve it
1
Total trail: 15 km
2
Already hiked: 8.5 km
3
Remaining: 15 - 8.5 = 6.5 km
Hints
What is the total distance?
How far have you already gone?
Subtract to find remaining distance