Let's solve each problem step by step.
---
Problem 1:
Question: Snack in our class occurs at 9:50 am. We eat lunch at 12:05 pm. How long do students need to wait from snack to lunch?
Solution:
1. Start time of snack: 9:50 am
2. End time of lunch: 12:05 pm
To find the elapsed time:
- From 9:50 am to 12:00 pm is 2 hours and 10 minutes.
- From 12:00 pm to 12:05 pm is 5 minutes.
- Total elapsed time = 2 hours + 10 minutes + 5 minutes = 2 hours and 15 minutes.
Answer: C) 2 hours, 15 minutes
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Problem 2:
Question: Lamar gets to basketball practice at 3:40 pm and practices for 1 hour and 30 minutes. What time is it now?
Solution:
1. Start time of practice: 3:40 pm
2. Duration of practice: 1 hour and 30 minutes
To find the end time:
- Adding 1 hour to 3:40 pm gives 4:40 pm.
- Adding 30 minutes to 4:40 pm gives 5:10 pm.
Answer: D) 5:10 pm
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Problem 3:
Question: Science class is 42 minutes long. If it starts at 1:30 pm, what time does it end?
Solution:
1. Start time of class: 1:30 pm
2. Duration of class: 42 minutes
To find the end time:
- Adding 30 minutes to 1:30 pm gives 2:00 pm.
- Adding the remaining 12 minutes to 2:00 pm gives 2:12 pm.
Answer: D) 2:12 pm
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Problem 4:
Question: It takes 12 minutes to cook chicken nuggets in the oven. If they are done at 6:10, what time did they go in the oven?
Solution:
1. End time of cooking: 6:10
2. Duration of cooking: 12 minutes
To find the start time:
- Subtract 12 minutes from 6:10.
- 6:10 - 12 minutes = 5:58.
Answer: A) 5:58
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Problem 5:
Question: School ends at 2:30. Kieron has soccer practice for 2 hours and 30 minutes after school. What time will soccer practice end?
Solution:
1. End time of school: 2:30 pm
2. Duration of soccer practice: 2 hours and 30 minutes
To find the end time:
- Adding 2 hours to 2:30 pm gives 4:30 pm.
- Adding 30 minutes to 4:30 pm gives 5:00 pm.
Answer: D) 5:00
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Problem 6:
Question: On Monday, Elmarco went to see a movie. The movie started at 7:30. The movie was 1 hour and 30 minutes long. What time did the movie end?
Solution:
1. Start time of the movie: 7:30
2. Duration of the movie: 1 hour and 30 minutes
To find the end time:
- Adding 1 hour to 7:30 gives 8:30.
- Adding 30 minutes to 8:30 gives 9:00.
Answer: A) 9:00
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Final Answers:
1. C) 2 hours, 15 minutes
2. D) 5:10 pm
3. D) 2:12 pm
4. A) 5:58
5. D) 5:00
6. A) 9:00
Boxed Final Answer:
\[
\boxed{C, D, D, A, D, A}
\]
Parent Tip: Review the logic above to help your child master the concept of time zone worksheet year 5.
