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Time Interval Challenge Worksheet
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Time Interval Challenge Worksheet
Work out each time interval carefully. Include units in your answers and use am or pm where needed.
Calculate and Convert Time
1.A stargazing session begins at 8:40 pm and ends at 10:05 pm. How long does it last?
2.Calculate the interval from 9:25 am to 11:10 am. Give your answer in hours and minutes.
3.A night-sky talk starts at 7:35 pm and finishes at 8:20 pm. How many minutes long is the talk?
4.Nikau begins packing the telescopes at 10:50 pm and finishes at 12:15 am. How long does he spend packing?
5.Convert 2 hours 35 minutes into minutes.
6.Convert 145 minutes into hours and minutes.
7.A planetarium show begins at 6:50 pm and lasts 1 hour 35 minutes. What time does it finish?
- 8:15 pm
- 8:25 pm
- 8:35 pm
- 9:25 pm
Timetable and Activity Problems
At the stargazing evening, the activities run at these times:
Activity
Time
Welcome and equipment check
7:00 pm–7:20 pm
Constellation talk
7:35 pm–8:05 pm
Telescope viewing
8:20 pm–9:05 pm
Meteor observation
9:20 pm–10:00 pm
8.How long is the constellation talk?
9.How much time passes between the end of the constellation talk and the start of telescope viewing?
10.Tui attends both telescope viewing and meteor observation. What is the total time she spends in these two activities?
11.The welcome and equipment check lasts 20 minutes. If it starts at 7:00 pm, what time does it finish?
12.Nathan arrives at the event at 7:10 pm and leaves at 9:45 pm. How long is he there?
Choose and Match
13.A telescope demonstration starts at 8:45 pm and lasts 50 minutes. When does it end?
- 9:25 pm
- 9:35 pm
- 9:45 pm
- 10:35 pm
14.Match each time interval to its equivalent length.
- 1 hour 20 minutes
- 75 minutes
- 1 hour 35 minutes
- 2 hours
- 120 minutes
- 95 minutes
- 80 minutes
- 1 hour 15 minutes
15.A stargazing group plans three equal-length activities during a 2-hour session. How many minutes should each activity last?
3 printable pages
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