Let's solve each problem step by step and explain the reasoning.
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1) 1:15 AM to 4:35 AM
- From 1:15 AM to 4:15 AM = 3 hours
- From 4:15 AM to 4:35 AM = 20 minutes
- Total:
3 hours and 20 minutes
✔ Answer: 3 hours and 20 minutes
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2) 2:35 AM to 5:10 AM
- From 2:35 AM to 5:35 AM = 3 hours
- But we only go to 5:10 AM, so subtract 25 minutes (from 5:10 to 5:35)
- So: 3 hours - 25 minutes = 2 hours 35 minutes
- Alternatively:
- From 2:35 to 3:35 = 1 hour
- 3:35 to 4:35 = 1 hour
- 4:35 to 5:10 = 35 minutes
- Total: 2 hours + 35 minutes =
2 hours and 35 minutes
✔ Answer: 2 hours and 35 minutes
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3) 6:00 AM to 7:25 AM
- From 6:00 to 7:00 = 1 hour
- From 7:00 to 7:25 = 25 minutes
- Total:
1 hour and 25 minutes
✔ Answer: 1 hour and 25 minutes
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4) 6:15 PM to 7:30 PM
- From 6:15 to 7:15 = 1 hour
- From 7:15 to 7:30 = 15 minutes
- Total:
1 hour and 15 minutes
✔ Answer: 1 hour and 15 minutes
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5) 5:15 A.M. to 5:45 A.M.
- Both are in the same hour.
- 45 - 15 = 30 minutes
✔ Answer: 30 minutes
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6) 4:05 A.M. to 4:30 A.M.
- Same hour: 30 - 5 = 25 minutes
✔ Answer: 25 minutes
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7) There are ____ seconds in 15 minutes
- 1 minute = 60 seconds
- 15 × 60 = 900 seconds
✔ Answer: 900 seconds
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8) There are ____ seconds in 11 minutes
- 11 × 60 = 660 seconds
✔ Answer: 660 seconds
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9) There are ____ seconds in 27 minutes
- 27 × 60 = 1620 seconds
✔ Answer: 1620 seconds
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10) There are ____ minutes in 10 hours
- 1 hour = 60 minutes
- 10 × 60 = 600 minutes
✔ Answer: 600 minutes
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11) There are ____ minutes in 20 hours
- 20 × 60 = 1200 minutes
✔ Answer: 1200 minutes
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12) There are ____ minutes in 12 hours
- 12 × 60 = 720 minutes
✔ Answer: 720 minutes
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✔ Final Answers:
1)
3 hours and 20 minutes
2)
2 hours and 35 minutes
3)
1 hour and 25 minutes
4)
1 hour and 15 minutes
5)
30 minutes
6)
25 minutes
7)
900 seconds
8)
660 seconds
9)
1620 seconds
10)
600 minutes
11)
1200 minutes
12)
720 minutes
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Let me know if you'd like this formatted as a printable answer sheet!
Parent Tip: Review the logic above to help your child master the concept of time measurement worksheet.
