Let’s solve each elapsed time word problem step by step.
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Problem 1:
> Devin goes to karate practice at 4:45 p.m. He leaves 1 hour and 10 minutes later. What time did he leave?
Start time:
4:45 p.m.
Add:
1 hour 10 minutes
- Add 1 hour → 5:45 p.m.
- Add 10 minutes →
5:55 p.m.
✔ Answer: C. 5:55 p.m.
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Problem 2:
> Dylan and Kane go fishing at 5:45 p.m. It starts to rain, so they leave 85 minutes later. What time did they leave?
Start time:
5:45 p.m.
Add:
85 minutes
Note: 85 minutes =
1 hour 25 minutes
- Add 1 hour → 6:45 p.m.
- Add 25 minutes →
7:10 p.m.
✔ Answer: D. 7:10 p.m.
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Problem 3:
> Aubree and Lucy go to a movie. The movie starts at 5:45 p.m. and ends at 8:15 p.m. How long was the movie?
End time:
8:15 p.m.
Start time:
5:45 p.m.
Subtract:
- From 5:45 to 6:45 = 1 hour
- From 6:45 to 7:45 = 1 hour
- From 7:45 to 8:15 = 30 minutes
Total =
2 hours 30 minutes
✔ Answer: B. 2 hours and 30 minutes
*(Alternative method: Convert to minutes)*
8:15 = 8×60 + 15 = 495 minutes
5:45 = 5×60 + 45 = 345 minutes
495 - 345 = 150 minutes =
2 hours 30 minutes
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Problem 4:
> Xander arrives at baseball practice at 6:05 p.m. His mom picks him up after practice at 7:20 p.m. How long was baseball practice?
End time:
7:20 p.m.
Start time:
6:05 p.m.
Subtract:
- From 6:05 to 7:05 = 1 hour
- From 7:05 to 7:20 = 15 minutes
Total =
1 hour 15 minutes
✔ Answer: B. 1 hour 15 minutes
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Problem 5:
> Sady’s art class ended at 6:30 p.m. If her class lasted 1 hour and 45 minutes, what time did it start?
End time:
6:30 p.m.
Subtract:
1 hour 45 minutes
First, subtract 1 hour → 5:30 p.m.
Then subtract 45 minutes → 5:30 minus 45 min =
4:45 p.m.
✔ Answer: D. 4:45 p.m.
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Problem 6:
> Katelynn and her mom were baking cookies. They finished baking cookies at 7:20 p.m. If they baked cookies for 1 hour and 25 minutes, what time did they start baking the cookies?
End time:
7:20 p.m.
Subtract:
1 hour 25 minutes
Subtract 1 hour → 6:20 p.m.
Subtract 25 minutes → 6:20 minus 25 min =
5:55 p.m.
✔ Answer: 5:55 p.m. *(Note: This option is not listed in the image — likely cut off or incomplete. But based on calculation, it should be 5:55 p.m.)*
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✔ Final Answers:
1.
C. 5:55 p.m.
2.
D. 7:10 p.m.
3.
B. 2 hours and 30 minutes
4.
B. 1 hour 15 minutes
5.
D. 4:45 p.m.
6.
5:55 p.m. *(Not shown in options — possible typo or missing choice)*
Let me know if you’d like to see visual timelines or clock diagrams for any of these!
Parent Tip: Review the logic above to help your child master the concept of time worksheet grade 4 word problems.
