estimation and rounding

Question

Richard and Lynda are planning a touring holiday. They live in Melbourne. Here is their plan for the first 5 days.

Day of Holiday Destination Distance Travelled Journey Time
Day 1 Adelaide 194 km 1 hour 59 minutes
Day 2 Canberra 219 km 2 hours 12 minutes
Day 3 Sydney 284 km 2 hours 51 minutes
Day 4 Tamworth 307 km 3 hours 57 minutes
Day 5 Hervey Bay 389 km 4 hours 2 minutes

Estimate how many kilometers they will travel:
km
(Round each travel distance to 100 km)


Approximately, how many hours will Richard and Lynda travel during the touring holiday?
hours
(Round each journey time to a whole hour)

Answer 1

200 + 200 + 300 + 300 + 400 = 1400 km

2 + 2 + 3 + 4 + 4 = 15 hours