Here are the solutions for the elapsed time problems. I have calculated each one step-by-step to ensure accuracy.
2. 3:30 in the afternoon to six in the evening
* From 3:30 p.m. to 4:30 p.m. is 1 hour.
* From 4:30 p.m. to 5:30 p.m. is 1 hour.
* From 5:30 p.m. to 6:00 p.m. is 30 minutes.
* Total: 1 + 1 + 0.5 =
2 hours and 30 minutes (or 2.5 hours).
3. half past nine in the morning to 7 p.m.
* "Half past nine" is 9:30 a.m.
* From 9:30 a.m. to 12:30 p.m. (noon) is 3 hours.
* From 12:30 p.m. to 6:30 p.m. is 6 hours.
* From 6:30 p.m. to 7:00 p.m. is 30 minutes.
* Total: 3 + 6 + 0.5 =
9 hours and 30 minutes (or 9.5 hours).
4. 7 a.m. to 7 p.m.
* From 7 a.m. to 7 p.m. is exactly half a day.
* There are 12 hours between 7 a.m. and 7 p.m.
* Total:
12 hours.
5. five in the morning to half past four in the afternoon
* "Five in the morning" is 5:00 a.m.
* "Half past four" is 4:30 p.m.
* From 5:00 a.m. to 5:00 p.m. would be 12 hours.
* Since it is only 4:30 p.m., we subtract 30 minutes from 12 hours.
* Total:
11 hours and 30 minutes (or 11.5 hours).
6. 4:30 in the afternoon to 12:30 a.m.
* From 4:30 p.m. to 12:30 a.m. (midnight) crosses into the next day.
* Count up: 5:30, 6:30, 7:30, 8:30, 9:30, 10:30, 11:30, 12:30.
* That is 8 steps of 1 hour each.
* Total:
8 hours.
7. six in the morning to eight in the morning
* From 6:00 a.m. to 7:00 a.m. is 1 hour.
* From 7:00 a.m. to 8:00 a.m. is 1 hour.
* Total:
2 hours.
8. half past six in the morning to two in the afternoon
* "Half past six" is 6:30 a.m.
* From 6:30 a.m. to 12:30 p.m. is 6 hours.
* From 12:30 p.m. to 2:00 p.m. is 1 hour and 30 minutes.
* Total: 6 + 1.5 =
7 hours and 30 minutes (or 7.5 hours).
9. five in the afternoon to six at night
* "Five in the afternoon" is 5:00 p.m.
* "Six at night" is 6:00 p.m.
* From 5:00 to 6:00 is 1 hour.
* Total:
1 hour.
10. 1:30 p.m. to 8 p.m.
* From 1:30 p.m. to 7:30 p.m. is 6 hours.
* From 7:30 p.m. to 8:00 p.m. is 30 minutes.
* Total:
6 hours and 30 minutes (or 6.5 hours).
Final Answer:
2. 2 hours and 30 minutes
3. 9 hours and 30 minutes
4. 12 hours
5. 11 hours and 30 minutes
6. 8 hours
7. 2 hours
8. 7 hours and 30 minutes
9. 1 hour
10. 6 hours and 30 minutes
Parent Tip: Review the logic above to help your child master the concept of time elapsed worksheet 3rd.
