I'll solve this elapsed time worksheet by calculating the time difference between the two clocks for each problem. Let me go through each one step by step.
Problem 1:
- First clock: 12:00 (hour hand on 12, minute hand on 12)
- Second clock: 3:00 (hour hand on 3, minute hand on 12)
- Elapsed time: 3 hours
Problem 2:
- First clock: 7:00 (hour hand on 7, minute hand on 12)
- Second clock: 5:00 (hour hand on 5, minute hand on 12)
- Since we're going from 7 to 5, this is likely 10 hours later (7 AM to 5 PM, or 7 PM to 5 AM)
- Elapsed time: 10 hours
Problem 3:
- First clock: 9:00 (hour hand on 9, minute hand on 12)
- Second clock: 4:00 (hour hand on 4, minute hand on 12)
- From 9 to 4 is 7 hours later (9 AM to 4 PM, or 9 PM to 4 AM)
- Elapsed time: 7 hours
Problem 4:
- First clock: 6:30 (hour hand between 6 and 7, minute hand on 6)
- Second clock: 3:30 (hour hand between 3 and 4, minute hand on 6)
- From 6:30 to 3:30 is 9 hours later
- Elapsed time: 9 hours
Problem 5:
- First clock: 6:00 (hour hand on 6, minute hand on 12)
- Second clock: 2:00 (hour hand on 2, minute hand on 12)
- From 6 to 2 is 8 hours later
- Elapsed time: 8 hours
Problem 6:
- First clock: 9:00 (hour hand on 9, minute hand on 12)
- Second clock: 1:30 (hour hand between 1 and 2, minute hand on 6)
- From 9:00 to 1:30 is 4 hours and 30 minutes, which is 4.5 hours
- Elapsed time: 4.5 hours
Problem 7:
- First clock: 4:30 (hour hand between 4 and 5, minute hand on 6)
- Second clock: 1:00 (hour hand on 1, minute hand on 12)
- From 4:30 to 1:00 is 8 hours and 30 minutes, which is 8.5 hours
- Elapsed time: 8.5 hours
Problem 8:
- First clock: 9:00 (hour hand on 9, minute hand on 12)
- Second clock: 11:00 (hour hand on 11, minute hand on 12)
- From 9 to 11 is 2 hours
- Elapsed time: 2 hours
Problem 9:
- First clock: 9:00 (hour hand on 9, minute hand on 12)
- Second clock: 3:30 (hour hand between 3 and 4, minute hand on 6)
- From 9:00 to 3:30 is 6 hours and 30 minutes, which is 6.5 hours
- Elapsed time: 6.5 hours
Problem 10:
- First clock: 6:00 (hour hand on 6, minute hand on 12)
- Second clock: 12:30 (hour hand between 12 and 1, minute hand on 6)
- From 6:00 to 12:30 is 6 hours and 30 minutes, which is 6.5 hours
- Elapsed time: 6.5 hours
The completed worksheet answers are:
1. 3 hours
2. 10 hours
3. 7 hours
4. 9 hours
5. 8 hours
6. 4.5 hours
7. 8.5 hours
8. 2 hours
9. 6.5 hours
10. 6.5 hours
Parent Tip: Review the logic above to help your child master the concept of third grade elapsed time worksheet.
