Elapsed Time Worksheets - Math Monks - Free Printable
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Step-by-step solution for: Elapsed Time Worksheets - Math Monks
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Show Answer Key & Explanations
Step-by-step solution for: Elapsed Time Worksheets - Math Monks
Let’s solve each problem step by step. We’ll find how much time has passed between the two given times.
We can break it into hours and minutes, or count up from the start time to the end time.
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① From 3:45 AM to 6:15 AM
From 3:45 to 4:45 → 1 hour
From 4:45 to 5:45 → another hour (total 2 hours)
From 5:45 to 6:15 → 30 minutes
Total = 2 hours + 30 minutes = 2 hours 30 minutes
---
② From 1:30 PM to 4:40 PM
From 1:30 to 2:30 → 1 hour
From 2:30 to 3:30 → 1 hour (total 2)
From 3:30 to 4:30 → 1 hour (total 3)
From 4:30 to 4:40 → 10 minutes
Total = 3 hours 10 minutes
---
③ From 12:20 PM to 6:00 PM
From 12:20 to 1:20 → 1 hour
... keep going every hour until 5:20 → that’s 5 hours total (to 5:20)
From 5:20 to 6:00 → 40 minutes
Total = 5 hours 40 minutes
Wait — let’s check:
12:20 to 6:20 would be exactly 6 hours. But we stop at 6:00, so subtract 20 minutes → 5 hours 40 minutes ✔
---
④ From 10:35 AM to 3:00 PM
First, go from 10:35 AM to 12:35 PM → 2 hours
Then from 12:35 PM to 3:00 PM → 2 hours 25 minutes? Wait, better way:
From 10:35 to 11:35 → 1 hr
11:35 to 12:35 → 1 hr (total 2)
12:35 to 1:35 → 1 hr (total 3)
1:35 to 2:35 → 1 hr (total 4)
2:35 to 3:00 → 25 minutes
Total = 4 hours 25 minutes
✔ Correct.
---
⑤ From 6:00 AM to 11:20 AM
Easy: 6 to 11 is 5 hours, plus 20 minutes → 5 hours 20 minutes
---
⑥ From 5:30 PM to 9:15 PM
5:30 to 6:30 → 1 hr
6:30 to 7:30 → 1 hr (2)
7:30 to 8:30 → 1 hr (3)
8:30 to 9:15 → 45 minutes
Total = 3 hours 45 minutes
---
⑦ From 11:45 PM to 2:00 PM
This crosses midnight! So split it.
From 11:45 PM to 12:00 AM → 15 minutes
From 12:00 AM to 2:00 PM → 14 hours (since 12 AM to 12 PM is 12 hrs, then +2 more to 2 PM)
Wait — 12:00 AM to 2:00 PM is actually 14 hours? Let’s see:
12:00 AM → 12:00 PM = 12 hours
12:00 PM → 2:00 PM = 2 hours → total 14 hours
Plus the first 15 minutes → 14 hours 15 minutes
But wait — from 11:45 PM to 2:00 PM next day?
Actually, yes — because 11:45 PM to 12:00 AM is 15 min, then 12:00 AM to 2:00 PM is 14 hours → total 14h15m
✔
---
⑧ From 1:00 AM to 5:35 AM
Simple: 1 to 5 is 4 hours, plus 35 minutes → 4 hours 35 minutes
---
⑨ From 4:10 PM to 9:35 PM
4:10 to 5:10 → 1 hr
5:10 to 6:10 → 1 hr (2)
6:10 to 7:10 → 1 hr (3)
7:10 to 8:10 → 1 hr (4)
8:10 to 9:10 → 1 hr (5)
9:10 to 9:35 → 25 minutes
Total = 5 hours 25 minutes
---
⑩ From 6:35 AM to 9:40 AM
6:35 to 7:35 → 1 hr
7:35 to 8:35 → 1 hr (2)
8:35 to 9:35 → 1 hr (3)
9:35 to 9:40 → 5 minutes
Total = 3 hours 5 minutes
---
⑪ From 8:50 AM to 11:40 PM
Crosses noon! Split it.
From 8:50 AM to 12:00 PM → how long?
8:50 to 9:50 → 1 hr
9:50 to 10:50 → 1 hr (2)
10:50 to 11:50 → but we only go to 12:00 → so from 10:50 to 12:00 is 1 hr 10 min? Better:
From 8:50 AM to 12:00 PM:
Hours: 8:50 → 9:00 = 10 min
9:00 → 12:00 = 3 hours
So total = 3 hours 10 minutes
Then from 12:00 PM to 11:40 PM → 11 hours 40 minutes
Add them: 3h10m + 11h40m = 14 hours 50 minutes
Check: 8:50 AM to 8:50 PM = 12 hours
Then 8:50 PM to 11:40 PM = 2 hours 50 minutes
Total = 12 + 2h50m = 14h50m ✔
---
⑫ From 12:00 AM to 5:46 AM
Straightforward: 5 hours 46 minutes
---
Now, compiling all answers:
Final Answer:
① 2 hours 30 minutes
② 3 hours 10 minutes
③ 5 hours 40 minutes
④ 4 hours 25 minutes
⑤ 5 hours 20 minutes
⑥ 3 hours 45 minutes
⑦ 14 hours 15 minutes
⑧ 4 hours 35 minutes
⑨ 5 hours 25 minutes
⑩ 3 hours 5 minutes
⑪ 14 hours 50 minutes
⑫ 5 hours 46 minutes
We can break it into hours and minutes, or count up from the start time to the end time.
---
① From 3:45 AM to 6:15 AM
From 3:45 to 4:45 → 1 hour
From 4:45 to 5:45 → another hour (total 2 hours)
From 5:45 to 6:15 → 30 minutes
Total = 2 hours + 30 minutes = 2 hours 30 minutes
---
② From 1:30 PM to 4:40 PM
From 1:30 to 2:30 → 1 hour
From 2:30 to 3:30 → 1 hour (total 2)
From 3:30 to 4:30 → 1 hour (total 3)
From 4:30 to 4:40 → 10 minutes
Total = 3 hours 10 minutes
---
③ From 12:20 PM to 6:00 PM
From 12:20 to 1:20 → 1 hour
... keep going every hour until 5:20 → that’s 5 hours total (to 5:20)
From 5:20 to 6:00 → 40 minutes
Total = 5 hours 40 minutes
Wait — let’s check:
12:20 to 6:20 would be exactly 6 hours. But we stop at 6:00, so subtract 20 minutes → 5 hours 40 minutes ✔
---
④ From 10:35 AM to 3:00 PM
First, go from 10:35 AM to 12:35 PM → 2 hours
Then from 12:35 PM to 3:00 PM → 2 hours 25 minutes? Wait, better way:
From 10:35 to 11:35 → 1 hr
11:35 to 12:35 → 1 hr (total 2)
12:35 to 1:35 → 1 hr (total 3)
1:35 to 2:35 → 1 hr (total 4)
2:35 to 3:00 → 25 minutes
Total = 4 hours 25 minutes
✔ Correct.
---
⑤ From 6:00 AM to 11:20 AM
Easy: 6 to 11 is 5 hours, plus 20 minutes → 5 hours 20 minutes
---
⑥ From 5:30 PM to 9:15 PM
5:30 to 6:30 → 1 hr
6:30 to 7:30 → 1 hr (2)
7:30 to 8:30 → 1 hr (3)
8:30 to 9:15 → 45 minutes
Total = 3 hours 45 minutes
---
⑦ From 11:45 PM to 2:00 PM
This crosses midnight! So split it.
From 11:45 PM to 12:00 AM → 15 minutes
From 12:00 AM to 2:00 PM → 14 hours (since 12 AM to 12 PM is 12 hrs, then +2 more to 2 PM)
Wait — 12:00 AM to 2:00 PM is actually 14 hours? Let’s see:
12:00 AM → 12:00 PM = 12 hours
12:00 PM → 2:00 PM = 2 hours → total 14 hours
Plus the first 15 minutes → 14 hours 15 minutes
But wait — from 11:45 PM to 2:00 PM next day?
Actually, yes — because 11:45 PM to 12:00 AM is 15 min, then 12:00 AM to 2:00 PM is 14 hours → total 14h15m
✔
---
⑧ From 1:00 AM to 5:35 AM
Simple: 1 to 5 is 4 hours, plus 35 minutes → 4 hours 35 minutes
---
⑨ From 4:10 PM to 9:35 PM
4:10 to 5:10 → 1 hr
5:10 to 6:10 → 1 hr (2)
6:10 to 7:10 → 1 hr (3)
7:10 to 8:10 → 1 hr (4)
8:10 to 9:10 → 1 hr (5)
9:10 to 9:35 → 25 minutes
Total = 5 hours 25 minutes
---
⑩ From 6:35 AM to 9:40 AM
6:35 to 7:35 → 1 hr
7:35 to 8:35 → 1 hr (2)
8:35 to 9:35 → 1 hr (3)
9:35 to 9:40 → 5 minutes
Total = 3 hours 5 minutes
---
⑪ From 8:50 AM to 11:40 PM
Crosses noon! Split it.
From 8:50 AM to 12:00 PM → how long?
8:50 to 9:50 → 1 hr
9:50 to 10:50 → 1 hr (2)
10:50 to 11:50 → but we only go to 12:00 → so from 10:50 to 12:00 is 1 hr 10 min? Better:
From 8:50 AM to 12:00 PM:
Hours: 8:50 → 9:00 = 10 min
9:00 → 12:00 = 3 hours
So total = 3 hours 10 minutes
Then from 12:00 PM to 11:40 PM → 11 hours 40 minutes
Add them: 3h10m + 11h40m = 14 hours 50 minutes
Check: 8:50 AM to 8:50 PM = 12 hours
Then 8:50 PM to 11:40 PM = 2 hours 50 minutes
Total = 12 + 2h50m = 14h50m ✔
---
⑫ From 12:00 AM to 5:46 AM
Straightforward: 5 hours 46 minutes
---
Now, compiling all answers:
Final Answer:
① 2 hours 30 minutes
② 3 hours 10 minutes
③ 5 hours 40 minutes
④ 4 hours 25 minutes
⑤ 5 hours 20 minutes
⑥ 3 hours 45 minutes
⑦ 14 hours 15 minutes
⑧ 4 hours 35 minutes
⑨ 5 hours 25 minutes
⑩ 3 hours 5 minutes
⑪ 14 hours 50 minutes
⑫ 5 hours 46 minutes
Parent Tip: Review the logic above to help your child master the concept of elapsed time worksheet 5th grade.
