Let me work through each elapsed time problem carefully.
1) Start: 2:15, End: 3:55
From 2:15 to 3:15 = 1 hour
From 3:15 to 3:55 = 40 minutes
Total: 1 hour 40 minutes
2) Start: 2:10, End: 4:55
From 2:10 to 4:10 = 2 hours
From 4:10 to 4:55 = 45 minutes
Total: 2 hours 45 minutes
3) Start: 2:45, End: 4:55
From 2:45 to 4:45 = 2 hours
From 4:45 to 4:55 = 10 minutes
Total: 2 hours 10 minutes
4) Start: 2:20, End: 3:40
From 2:20 to 3:20 = 1 hour
From 3:20 to 3:40 = 20 minutes
Total: 1 hour 20 minutes
5) Start: 11:05, End: 1:30
From 11:05 to 12:05 = 1 hour
From 12:05 to 1:05 = 1 hour
From 1:05 to 1:30 = 25 minutes
Total: 2 hours 25 minutes
6) Start: 11:05, End: 1:25
From 11:05 to 12:05 = 1 hour
From 12:05 to 1:05 = 1 hour
From 1:05 to 1:25 = 20 minutes
Total: 2 hours 20 minutes
7) Start: 3:45, End: 6:05
From 3:45 to 5:45 = 2 hours
From 5:45 to 6:05 = 20 minutes
Total: 2 hours 20 minutes
8) Start: 6:20, End: 7:50
From 6:20 to 7:20 = 1 hour
From 7:20 to 7:50 = 30 minutes
Total: 1 hour 30 minutes
Final Answer:
1) 1 hour 40 minutes
2) 2 hours 45 minutes
3) 2 hours 10 minutes
4) 1 hour 20 minutes
5) 2 hours 25 minutes
6) 2 hours 20 minutes
7) 2 hours 20 minutes
8) 1 hour 30 minutes
Parent Tip: Review the logic above to help your child master the concept of elapsed time number line worksheet.
