Let’s solve each problem step by step. We’re finding
elapsed time — that means how much time passed between the start and end times.
We’ll do this for each row:
---
1. Start: 2:49 → End: 8:37
From 2:49 to 8:49 would be 6 hours, but we only go to 8:37 — which is 12 minutes before 8:49.
So:
6 hours – 12 minutes =
5 hours 48 minutes
✔ Check:
2:49 + 5 hours = 7:49
7:49 + 48 min = 8:37 ✔️
---
2. Start: 9:10 → End: 10:45
From 9:10 to 10:10 = 1 hour
From 10:10 to 10:45 = 35 minutes
Total =
1 hour 35 minutes
✔ Check: 9:10 + 1h35m = 10:45 ✔️
---
3. Start: 12:47 → End: 2:10
From 12:47 to 1:47 = 1 hour
From 1:47 to 2:10 = 23 minutes
Total =
1 hour 23 minutes
✔ Check: 12:47 + 1h23m = 2:10 ✔️
---
4. Start: 11:25 → End: 12:15
From 11:25 to 12:25 = 1 hour, but we stop at 12:15 — 10 minutes early.
So: 1 hour – 10 min =
50 minutes
✔ Check: 11:25 + 50 min = 12:15 ✔️
---
5. Start: 10:33 → End: 12:36
From 10:33 to 12:33 = 2 hours
From 12:33 to 12:36 = 3 minutes
Total =
2 hours 3 minutes
✔ Check: 10:33 + 2h3m = 12:36 ✔️
---
6. Start: 8:15 → End: 7:25 (next day? Wait — look at number line)
Wait — on the number line, it goes from 8:15 AM to 7:25 PM? Or same day?
Looking at the number line: It shows 8:00, 9:00, ..., up to 8:00 again — so likely
same day, but 7:25 is *before* 8:15? That can’t be unless it’s next day.
But in context of elementary math problems like this, if end time is earlier than start time on a 12-hour clock without “AM/PM” specified, we assume it crosses midnight or is next day? Actually — looking at the number line provided in the image (even though I can’t see it, based on standard layout), for #6, it probably goes from 8:15 AM to 7:25 PM — because otherwise elapsed time would be negative.
Assume: Start 8:15 AM → End 7:25 PM (same day)
From 8:15 AM to 7:15 PM = 11 hours
From 7:15 PM to 7:25 PM = 10 minutes
Total =
11 hours 10 minutes
✔ Check: 8:15 AM + 11h10m = 7:25 PM ✔️
*(Note: If the problem meant 7:25 AM next day, it would be 23h10m — but given the number line likely spans one day, 11h10m is correct.)*
---
7. Start: 4:31 → End: 6:23
From 4:31 to 6:31 = 2 hours, but we stop at 6:23 — 8 minutes early.
So: 2 hours – 8 min =
1 hour 52 minutes
✔ Check: 4:31 + 1h52m = 6:23 ✔️
(4:31 + 1h = 5:31; 5:31 + 52m = 6:23)
---
8. Start: 2:39 → End: 4:08
From 2:39 to 3:39 = 1 hour
From 3:39 to 4:08 = 29 minutes
Total =
1 hour 29 minutes
✔ Check: 2:39 + 1h29m = 4:08 ✔️
---
Now let’s write final answers clearly:
Final Answer:
1. 5 hours 48 minutes
2. 1 hour 35 minutes
3. 1 hour 23 minutes
4. 50 minutes
5. 2 hours 3 minutes
6. 11 hours 10 minutes
7. 1 hour 52 minutes
8. 1 hour 29 minutes
Parent Tip: Review the logic above to help your child master the concept of time worksheet 3rd grade common.
