Let’s solve each problem one by one, step by step.
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Problem 1:
Marianne began her homework at 3:20 pm. She finished it at 4:45 pm. How long did it take?
Step 1: From 3:20 to 4:20 is exactly 1 hour.
Step 2: From 4:20 to 4:45 is 25 minutes (because 45 - 20 = 25).
Step 3: Add them together → 1 hour + 25 minutes.
✔ Answer:
1 hour 25 minutes
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Problem 2:
The movie started at 6:11 pm. It lasted 84 minutes. What time did it finish?
Step 1: Break 84 minutes into hours and minutes → 60 minutes = 1 hour, so 84 = 60 + 24 → that’s 1 hour and 24 minutes.
Step 2: Add 1 hour to 6:11 → becomes 7:11.
Step 3: Add 24 minutes to 7:11 → 11 + 24 = 35 → so 7:35.
✔ Answer:
7:35 pm
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Problem 3:
It takes Frank 47 minutes to get from his house to the store. He wants to be there at 9:00 am. What time does he need to leave?
Step 1: We need to go BACKWARD in time — subtract 47 minutes from 9:00 am.
Step 2: Think of 9:00 as 8:60 (borrowing an hour to make subtraction easier).
Step 3: 8:60 minus 47 minutes → 60 - 47 = 13 → so 8:13.
✔ Answer:
8:13 am
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Problem 4:
Nemo started talking at 4:35 pm. They said goodbye at 8:22 pm. How long did they speak?
Step 1: From 4:35 to 8:35 would be 4 hours — but they stopped at 8:22, which is 13 minutes BEFORE 8:35.
So instead, let’s count forward:
From 4:35 to 5:35 → 1 hour
5:35 to 6:35 → 2 hours
6:35 to 7:35 → 3 hours
7:35 to 8:22 → how many minutes? From 7:35 to 8:00 is 25 minutes, then 8:00 to 8:22 is 22 more → 25 + 22 = 47 minutes.
Wait — that’s not right. Let’s do it better:
Better way:
From 4:35 to 8:22
Break it:
- 4:35 to 5:00 → 25 minutes
- 5:00 to 8:00 → 3 hours
- 8:00 to 8:22 → 22 minutes
Add: 25 min + 3 hr + 22 min = 3 hours and 47 minutes.
✔ Answer:
3 hours 47 minutes
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Problem 5:
Betty spent 1 hour 23 minutes making spaghetti, and 1 hour 40 minutes making meatballs. Total time?
Step 1: Add hours: 1 + 1 = 2 hours
Step 2: Add minutes: 23 + 40 = 63 minutes
Step 3: 63 minutes = 1 hour and 3 minutes (since 60 min = 1 hour)
Step 4: Add that extra hour to the 2 hours → 3 hours total, plus 3 minutes.
✔ Answer:
3 hours 3 minutes
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Final Answer:
1. 1 hour 25 minutes
2. 7:35 pm
3. 8:13 am
4. 3 hours 47 minutes
5. 3 hours 3 minutes
Parent Tip: Review the logic above to help your child master the concept of time worksheet math is fun.
