Grade 5 · Math · Unit 9 of 12
Time & Duration
How long does it take?
What your child practises
Working out how long events last, finding end and start times, reading schedules, and converting between seconds, minutes, hours, days and weeks.
NWT Curriculum learning standard: Duration, using measurement of time
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
How many minutes does the bus take to go from the Library to the Hospital?
Bus schedule Stop Time Library 9:35 a.m. Community Centre 10:03 a.m. School 10:39 a.m. Hospital 10:59 a.m. answer boxmin
84 min
Hint: Find both times in the schedule. Count up from the earlier time to the later time, using the next hour as a stepping stone.
Question 2
How many hours are in 9 days?
answer boxh
216 h
Hint: There are 24 hours in 1 day. Multiply by 24: try × 20 and × 4, then add.
Question 3
How many minutes are in 5 h 20 min?
answer boxmin
320 min
Hint: Change the hours to minutes (× 60), then add the extra minutes.
Question 4
Soccer practice starts at 11:20 a.m. and ends at 12:50 p.m. How many minutes long is it?
answer boxmin
90 min
Hint: Count up from the start time: first to the next hour, then whole hours (60 minutes each), then the minutes left. Add the pieces.
Question 5
Put these durations in order from shortest to longest.
- 45 minutes
- 1 hour
- 100 minutes
- 90 seconds
90 seconds → 45 minutes → 1 hour → 100 minutes
Hint: Change them to the same unit before comparing. Remember: 60 s = 1 min, 60 min = 1 h, 24 h = 1 day, 7 days = 1 week.
Question 6
The clock shows when a movie starts in the afternoon. The movie is 1 h 10 min long. What time does it end?
- 3:00 p.m.
- 5:00 p.m.
- 4:10 p.m.
- 4:00 p.m.
4:00 p.m.
Hint: Read the start time. Add the hours first, then the minutes. If the minutes reach 60 or more, that makes one more hour.