Elapsed Time worksheet with analog clocks and time calculations.

Let’s solve each row step by step.

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Row 2:

Start Time: Clock shows hour hand between 10 and 11, minute hand on 4 → 10:20
End Time: Clock shows hour hand between 5 and 6, minute hand on 5 → 5:25

Wait — that can’t be right if we’re going forward in time. Let’s check again.

Actually, looking at the clocks:

- Start clock: Hour hand is just past 10, minute hand on 4 → 10:20
- End clock: Hour hand is just past 5, minute hand on 5 → 5:25

But 5:25 comes before 10:20? That doesn’t make sense for elapsed time unless it’s next day — but this is elementary level, so likely both times are same day and end time is after start time.

Wait — maybe I misread the end clock.

Let me re-express:

In Row 2:

Start Time:
Hour hand between 10 and 11 → 10 o’clock
Minute hand on 4 → 4 × 5 = 20 minutes → 10:20

End Time:
Hour hand between 5 and 6 → 5 o’clock
Minute hand on 5 → 5 × 5 = 25 minutes → 5:25

That would mean from 10:20 to 5:25 — which is 7 hours and 5 minutes? But that seems long, and also 5:25 PM to 10:20 AM next day? No — probably the end time is actually after the start time, so maybe the end clock is 5:25 PM and start is 10:20 AM? Still too long.

Wait — perhaps I have the clocks backwards? Or maybe the end time is 5:25 but it's later than 10:20? Only if it’s next day — but let’s look at the first example:

First row: 2:55 to 4:35 → 1 hour 40 min — correct.

So for Row 2: Maybe the start time is 10:20 and end time is 5:25 — but that must be 5:25 PM? Then from 10:20 AM to 5:25 PM is 7 hours 5 minutes.

But let’s double-check the clock positions.

Actually — wait! In the second row, the START clock: hour hand near 10, minute on 4 → 10:20
END clock: hour hand near 5, minute on 5 → 5:25 — but if we assume these are both in the same 12-hour cycle and end time is AFTER start time, then 5:25 must be PM and 10:20 AM? That’s possible.

Elapsed time from 10:20 AM to 5:25 PM:

From 10:20 AM to 12:20 PM = 2 hours
From 12:20 PM to 5:20 PM = 5 hours → total 7 hours
Then 5:20 to 5:25 = 5 minutes → total 7 hours 5 minutes

But let’s see if there’s a simpler interpretation.

Alternatively — maybe the end clock is not 5:25 but something else?

Wait — let’s look at the third row to verify pattern.

Row 3:

Start Time: Hour hand on 9, minute hand on 9 → 9:45
End Time: Hour hand on 12, minute hand on 12 → 12:00

Elapsed time: From 9:45 to 12:00

From 9:45 to 10:00 = 15 min
10:00 to 12:00 = 2 hours → total 2 hours 15 minutes

That makes sense.

Row 4:

Start Time: Hour hand between 10 and 11, minute hand on 7 → 10:35
End Time: Hour hand on 7, minute hand on 12 → 7:00

Again — 7:00 after 10:35? Must be 7:00 PM? So from 10:35 AM to 7:00 PM?

From 10:35 AM to 12:35 PM = 2 hours
12:35 PM to 7:00 PM = 6 hours 25 min → total 8 hours 25 min? That seems too long.

Wait — perhaps the end time is 7:00 AM next day? But again, unlikely for this level.

Alternative idea: Maybe the clocks are labeled with AM/PM implicitly, and we should calculate within same half-day or use 12-hour wrap.

But let’s go back to Row 2.

Perhaps I misread the end clock.

Looking again (mentally):

Row 2 End Clock: Hour hand is between 5 and 6 — closer to 5? Minute hand on 5 → 25 min → 5:25

But what if it’s 5:25 and start is 10:20 — and we’re meant to calculate as if 5:25 is later? Only if it’s next day.

But let’s try calculating elapsed time assuming same day and end time is after start time — so for Row 2, if start is 10:20 and end is 5:25, that must be 5:25 PM, so 7h5m.

But let’s check Row 4 similarly.

Row 4 Start: 10:35 (hour between 10-11, minute on 7 → 35)
End: 7:00 (hour on 7, minute on 12)

If end is 7:00 PM, then from 10:35 AM to 7:00 PM:

10:35 AM to 12:35 PM = 2h
12:35 PM to 7:00 PM = 6h25m → total 8h25m

But that seems excessive.

Wait — another possibility: maybe the end time in Row 4 is 7:00 AM next day? Then from 10:35 AM to 7:00 AM next day is 20h25m — even worse.

Perhaps I have the start and end switched? But the table says "Start Time" and "End Time".

Let’s look at the first example again: 2:55 to 4:35 = 1h40m — correct.

Now Row 2: Let’s write down the times clearly.

Assume all times are in the same 12-hour period and end time is after start time.

For Row 2:

Start: 10:20
End: 5:25 — but 5:25 < 10:20 numerically, so if we add 12 hours to end time, it becomes 17:25 (5:25 PM), and start is 10:20 AM.

Elapsed = 17:25 - 10:20 = 7 hours 5 minutes.

Similarly, Row 4:

Start: 10:35 AM
End: 7:00 PM = 19:00
Elapsed = 19:00 - 10:35 = 8 hours 25 minutes.

But let’s verify with subtraction:

From 10:35 to 11:35 = 1h
to 12:35 = 2h
to 1:35 = 3h
... up to 7:35 would be 9h, but we stop at 7:00, so from 10:35 to 7:00 is 8h25m? Let's calculate properly:

From 10:35 to 12:35 = 2 hours
From 12:35 to 7:00 = 6 hours 25 minutes (since 12:35 to 6:35 is 6h, plus 25 min to 7:00)
Total: 2 + 6 = 8 hours, plus 25 min = 8h25m — yes.

But is this intended? The worksheet might expect smaller numbers.

Another thought: perhaps the end clock in Row 2 is not 5:25 but 5:25 is correct, but maybe it's 5:25 and start is 10:20, and we're to calculate as 7h5m.

Let’s do Row 3 again to confirm method.

Row 3:

Start: 9:45
End: 12:00

From 9:45 to 10:00 = 15 min
10:00 to 12:00 = 2 hours
Total: 2 hours 15 minutes — correct.

Row 4:

Start: 10:35
End: 7:00 — if we assume 7:00 is PM, then 8h25m.

But let’s see if there’s a different reading.

Perhaps in Row 4, the end clock is 7:00, but hour hand is on 7, minute on 12 — that’s 7:00, and start is 10:35 — so if it's 7:00 AM next day, elapsed is 20h25m — no.

Or if it's 7:00 PM, 8h25m.

But let’s consider that maybe the end time in Row 2 is 5:25 and it's after 10:20, so 7h5m.

I think we have to go with that.

So let's list all:

Row 2:
Start: 10:20
End: 5:25 (PM)
Elapsed: 7 hours 5 minutes

Row 3:
Start: 9:45
End: 12:00
Elapsed: 2 hours 15 minutes

Row 4:
Start: 10:35
End: 7:00 (PM)
Elapsed: 8 hours 25 minutes

But wait — let's double-check Row 4 start time.

Start clock: hour hand between 10 and 11, minute hand on 7 — 7*5=35, so 10:35 — correct.

End clock: hour hand on 7, minute on 12 — 7:00 — correct.

Now, is there a possibility that the end time is 7:00 AM and start is 10:35 PM previous day? But the table doesn't indicate that.

Given the context of elementary school, perhaps they expect us to calculate within the same day without crossing noon/midnight, but here it does cross.

Another idea: perhaps for Row 2, the end time is 5:25 and start is 10:20, but 5:25 is earlier, so maybe it's a typo or I misread.

Let's imagine the clocks visually:

In Row 2, start clock: hour hand slightly past 10, minute on 4 — 10:20

End clock: hour hand slightly past 5, minute on 5 — 5:25

If we consider that 5:25 could be 5:25 PM and 10:20 AM, then elapsed is 7h5m.

Similarly for Row 4.

Perhaps the worksheet intends for us to use 24-hour format mentally.

Let's calculate using minutes since midnight.

Assume start times are AM, end times are PM if they are smaller number.

For Row 2:
Start: 10:20 AM = 10*60 + 20 = 620 minutes
End: 5:25 PM = 17*60 + 25 = 1020 + 25 = 1045 minutes
Elapsed = 1045 - 620 = 425 minutes = 7 hours 5 minutes (since 7*60=420, remainder 5)

For Row 3:
Start: 9:45 AM = 9*60+45=585
End: 12:00 PM = 12*60=720
Elapsed = 720-585=135 minutes = 2 hours 15 minutes

For Row 4:
Start: 10:35 AM = 10*60+35=635
End: 7:00 PM = 19*60=1140
Elapsed = 1140-635=505 minutes = 8 hours 25 minutes (8*60=480, 505-480=25)

So mathematically correct.

But let's see if the problem expects shorter times. Perhaps I misidentified the clocks.

Another possibility: in Row 2, the end clock might be 5:25 but it's 5:25 AM next day? Then from 10:20 AM to 5:25 AM next day is 19h5m — no.

Or perhaps the start time is 10:20 PM and end is 5:25 AM next day? Then from 10:20 PM to 5:25 AM is 7h5m — same as before.

From 10:20 PM to 12:20 AM = 2h
12:20 AM to 5:20 AM = 5h
5:20 to 5:25 = 5m — total 7h5m — same calculation.

So whether it's AM to PM or PM to AM next day, the elapsed time is the same if we cross midnight.

In this case, for Row 2, if start is 10:20 PM and end is 5:25 AM next day, elapsed is 7h5m.

Similarly for Row 4: start 10:35 PM, end 7:00 AM next day.

From 10:35 PM to 12:35 AM = 2h
12:35 AM to 7:00 AM = 6h25m
Total 8h25m — same as before.

So regardless of AM/PM, the elapsed time is the same when crossing midnight.

Therefore, we'll go with that.

So final answers:

Row 2: 7 hours 5 minutes
Row 3: 2 hours 15 minutes
Row 4: 8 hours 25 minutes

But let's write them in the format like the first one: "X hours Y minutes"

Also, for Row 3, it's straightforward.

Now, to present the answer.

Final Answer:

Row 2: 7 hours 5 minutes
Row 3: 2 hours 15 minutes
Row 4: 8 hours 25 minutes

But the table has three rows to fill, and we need to provide the elapsed time for each.

The user didn't specify how to output, but since it's a table, probably list them in order.

In the response, we should provide the elapsed times for the three empty rows.

So:

Second row elapsed time: 7 hours 5 minutes
Third row elapsed time: 2 hours 15 minutes
Fourth row elapsed time: 8 hours 25 minutes

But let's confirm the rows:

The table has:

Row 1: given — 2:55 to 4:35 = 1h40m

Row 2: start 10:20, end 5:25 → 7h5m

Row 3: start 9:45, end 12:00 → 2h15m

Row 4: start 10:35, end 7:00 → 8h25m

Yes.

So Final Answer will be these three values.