Name _________________________

3.8 Elapsed Time

Add the following units of time.

1. 15 minutes plus 60 minutes = ______

2. 10 minutes and twenty minutes = ______

3. 15 seconds and 45 seconds = ______

4. 50 minutes and 20 minutes = ______ hours ______ minutes

5. 75 minutes and 15 minutes = ______ hours  ______ minutes

6. 35 minutes and 10 minutes = ______ minutes

7. 60 minutes and 10 minutes = ______ hours ______ minutes

8. 75 minutes and 20 minutes = ______ hours ______ minutes

9. 120 minutes and ten minutes = ______ hours ______ minutes

10. 300 seconds and 5 minutes = ______ minutes

Convert the following units and fractional units of time.

11. 3000 seconds = ______ minutes

12. 4 hours = ______ minutes

13. 6000 seconds = ______ hours ______ minutes

14. 120 minutes = ______ hours

15. 360 minutes = ______ hours

16. 300 minutes = ______ hours

17. 12,000 seconds = ______ minutes

18.  hour = ______ minutes

19.  hour = ______ minutes

20.  hour = ______ minutes

Calculate the elapsed time in each problem.

21. If a movie starts at 7:15 and ends at 9:20, how long was the movie?

22. If a movie starts at 7:15 and ends at 9:20, but has ten minutes of previews, how long is the movie?

23. If a movie was 1:50 minutes and started at 8 pm, what time would the movie end?

24. If there were an additional 15 minutes of previews in this movie, what time would the movie end?

25. If there was also a 10 minute intermission, what time would the movie end?