Worked example
An outing starts at 9:30 and lasts 90 minutes. When does it end?
Answer & why
Answer: 11:00
60 minutes reaches 10:30; 30 more reaches 11:00.
Grade 3 · Math
Add longer time intervals
Find a finish time after more than an hour.
8 generated examples + worked example
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8 reproducible examples from this math generator. Choose New examples for another set.
Question 1
An activity starts at 5:15 and lasts 90 minutes. What time does it finish?
- 7:45
- 6:45
- 7:00
- 6:30
A hint
Count forward on a clock in 15-minute steps.
Answer & why
Answer: 6:45
Add 90 minutes to 5:15. The finish time is 6:45. Every 60 minutes makes one hour.
Question 2
An activity starts at 1:00 and lasts 105 minutes. What time does it finish?
- 3:00
- 2:30
- 2:45
- 3:45
A hint
Count forward on a clock in 15-minute steps.
Answer & why
Answer: 2:45
Add 105 minutes to 1:00. The finish time is 2:45. Every 60 minutes makes one hour.
Question 3
An activity starts at 5:15 and lasts 75 minutes. What time does it finish?
- 6:45
- 6:30
- 7:30
- 6:15
A hint
Count forward on a clock in 15-minute steps.
Answer & why
Answer: 6:30
Add 75 minutes to 5:15. The finish time is 6:30. Every 60 minutes makes one hour.
Question 4
An activity starts at 5:15 and lasts 45 minutes. What time does it finish?
- 6:15
- 6:00
- 7:00
- 5:45
A hint
Count forward on a clock in 15-minute steps.
Answer & why
Answer: 6:00
Add 45 minutes to 5:15. The finish time is 6:00. Every 60 minutes makes one hour.
Question 5
An activity starts at 8:00 and lasts 75 minutes. What time does it finish?
- 10:15
- 9:30
- 9:15
- 9:00
A hint
Count forward on a clock in 15-minute steps.
Answer & why
Answer: 9:15
Add 75 minutes to 8:00. The finish time is 9:15. Every 60 minutes makes one hour.
Question 6
An activity starts at 5:30 and lasts 15 minutes. What time does it finish?
- 5:45
- 6:00
- 6:45
- 5:30
A hint
Count forward on a clock in 15-minute steps.
Answer & why
Answer: 5:45
Add 15 minutes to 5:30. The finish time is 5:45. Every 60 minutes makes one hour.
Question 7
An activity starts at 8:30 and lasts 75 minutes. What time does it finish?
- 10:00
- 10:45
- 9:45
- 9:30
A hint
Count forward on a clock in 15-minute steps.
Answer & why
Answer: 9:45
Add 75 minutes to 8:30. The finish time is 9:45. Every 60 minutes makes one hour.
Question 8
An activity starts at 6:45 and lasts 75 minutes. What time does it finish?
- 9:00
- 7:45
- 8:15
- 8:00
A hint
Count forward on a clock in 15-minute steps.
Answer & why
Answer: 8:00
Add 75 minutes to 6:45. The finish time is 8:00. Every 60 minutes makes one hour.