Name Date
Hours worksheet
Grades 3–4 · CCSS 3.MD.A.1, 4.MD.A.2
Calcapedia Solve each problem and show your work. Round answers to 2 decimal places where needed.
- 1.
Problem 1. - Start time: 10:16
- End time: 12:32
- Unpaid break: 42 min
Find: Duration
Answer
- 2.
Problem 2. - Start time: 10:08
- End time: 19:42
- Unpaid break: 34 min
Find: Duration
Answer
- 3.
Problem 3. - Start time: 05:23
- End time: 16:32
- Unpaid break: 24 min
Find: Duration
Answer
- 4.
Problem 4. - Start time: 07:57
- End time: 20:10
- Unpaid break: 20 min
Find: Duration
Answer
- 5.
Problem 5. - Start time: 09:54
- End time: 20:29
- Unpaid break: 26 min
Find: Duration
Answer
- 6.
Problem 6. - Start time: 11:35
- End time: 14:26
- Unpaid break: 36 min
Find: Duration
Answer
- 7.
Problem 7. - Start time: 06:24
- End time: 20:04
- Unpaid break: 24 min
Find: Duration
Answer
- 8.
Problem 8. - Start time: 05:31
- End time: 19:46
- Unpaid break: 25 min
Find: Duration
Answer
- 9.
Problem 9. - Start time: 10:13
- End time: 21:09
- Unpaid break: 36 min
Find: Duration
Answer
- 10.
Problem 10. - Start time: 07:01
- End time: 19:16
- Unpaid break: 45 min
Find: Duration
Answer
Answer key: Hours worksheet
Calcapedia 1. Duration: 1 hour 34 minutes
Turn the start time into minutes after midnight, so the times are easy to subtract
Turn the end time into minutes after midnight the same way
Subtract the start from the end to get the time in between
Take off the unpaid break
Split into hours (60 minutes each) and minutes
For decimal hours (what pay is based on), divide the minutes by 60
2. Duration: 9 hours 0 minutes
Turn the start time into minutes after midnight, so the times are easy to subtract
Turn the end time into minutes after midnight the same way
Subtract the start from the end to get the time in between
Take off the unpaid break
Split into hours (60 minutes each) and minutes
For decimal hours (what pay is based on), divide the minutes by 60
3. Duration: 10 hours 45 minutes
Turn the start time into minutes after midnight, so the times are easy to subtract
Turn the end time into minutes after midnight the same way
Subtract the start from the end to get the time in between
Take off the unpaid break
Split into hours (60 minutes each) and minutes
For decimal hours (what pay is based on), divide the minutes by 60
4. Duration: 11 hours 53 minutes
Turn the start time into minutes after midnight, so the times are easy to subtract
Turn the end time into minutes after midnight the same way
Subtract the start from the end to get the time in between
Take off the unpaid break
Split into hours (60 minutes each) and minutes
For decimal hours (what pay is based on), divide the minutes by 60
5. Duration: 10 hours 9 minutes
Turn the start time into minutes after midnight, so the times are easy to subtract
Turn the end time into minutes after midnight the same way
Subtract the start from the end to get the time in between
Take off the unpaid break
Split into hours (60 minutes each) and minutes
For decimal hours (what pay is based on), divide the minutes by 60
6. Duration: 2 hours 15 minutes
Turn the start time into minutes after midnight, so the times are easy to subtract
Turn the end time into minutes after midnight the same way
Subtract the start from the end to get the time in between
Take off the unpaid break
Split into hours (60 minutes each) and minutes
For decimal hours (what pay is based on), divide the minutes by 60
7. Duration: 13 hours 16 minutes
Turn the start time into minutes after midnight, so the times are easy to subtract
Turn the end time into minutes after midnight the same way
Subtract the start from the end to get the time in between
Take off the unpaid break
Split into hours (60 minutes each) and minutes
For decimal hours (what pay is based on), divide the minutes by 60
8. Duration: 13 hours 50 minutes
Turn the start time into minutes after midnight, so the times are easy to subtract
Turn the end time into minutes after midnight the same way
Subtract the start from the end to get the time in between
Take off the unpaid break
Split into hours (60 minutes each) and minutes
For decimal hours (what pay is based on), divide the minutes by 60
9. Duration: 10 hours 20 minutes
Turn the start time into minutes after midnight, so the times are easy to subtract
Turn the end time into minutes after midnight the same way
Subtract the start from the end to get the time in between
Take off the unpaid break
Split into hours (60 minutes each) and minutes
For decimal hours (what pay is based on), divide the minutes by 60
10. Duration: 11 hours 30 minutes
Turn the start time into minutes after midnight, so the times are easy to subtract
Turn the end time into minutes after midnight the same way
Subtract the start from the end to get the time in between
Take off the unpaid break
Split into hours (60 minutes each) and minutes
For decimal hours (what pay is based on), divide the minutes by 60