Let’s solve each part step by step.
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Part a: Start Time = 11:56 am, End Time = 1:20 pm
We need to find how much time passed between 11:56 am and 1:20 pm.
Step 1: From 11:56 am to 12:00 pm is
4 minutes.
(Count up: 57, 58, 59, 60 → that’s 4 minutes)
Step 2: From 12:00 pm to 1:00 pm is
1 hour.
Step 3: From 1:00 pm to 1:20 pm is
20 minutes.
Now add them all together:
- 4 minutes + 1 hour + 20 minutes =
1 hour and 24 minutes
✔ So elapsed time for part a is
1 hour and 24 minutes
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Part b: Start Time = 6:15 pm, End Time = 9:10 pm
Step 1: From 6:15 pm to 7:15 pm is
1 hour
Step 2: From 7:15 pm to 8:15 pm is another
1 hour
Step 3: From 8:15 pm to 9:15 pm would be another hour — but we only go to 9:10 pm, so stop at 9:10.
So from 8:15 pm to 9:10 pm is
55 minutes (because 9:10 is 5 minutes before 9:15, so 60 - 5 = 55 minutes).
Wait — let’s double-check that:
From 8:15 to 9:00 is 45 minutes.
From 9:00 to 9:10 is 10 minutes.
So 45 + 10 =
55 minutes ✔
Total time:
- 1 hour (6:15–7:15)
- + 1 hour (7:15–8:15)
- + 55 minutes (8:15–9:10)
=
2 hours and 55 minutes
✔ So elapsed time for part b is
2 hours and 55 minutes
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Final Answer:
a. 1 hour and 24 minutes
b. 2 hours and 55 minutes
Parent Tip: Review the logic above to help your child master the concept of super teacher worksheet line plots.