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Worksheet on Addition of Hours, Minutes and Seconds

Practice the questions given in the worksheet on addition of hours, minutes and seconds.

Note: Here we need to add the hours, minutes and seconds separately.

I. Find the sum of the following:

1. 3 hr. 17 min. 24 sec. + 4 hr. 32 min. 14 sec.

2. 6 hr. 10 min. 31 sec. + 7 hr. 38 min. 05 sec.

3. 2 hr. 15 min. 10 sec. + 4 hr. 20 min. 27 sec.

4. 4 hr. 35 min. 28 sec. + 3 hr. 16 min. 26 sec.

5. 5 hr. 37 min. 34 sec. + 8 hr. 32 min. 19 sec.

6. 14 hr. 32 min. 21 sec. + 16 hr. 24 min. 29 sec.

7. 12 hr. 26 min. 17 sec. + 14 hr. 37 min. 35 sec.

8. 17 hr. 23 min. 12 sec. + 21 hr. 29 min. 38 sec.

9. 39 hr. 43 min. 21 sec. + 12 hr. 21 min. 32 sec.

10. 6 hr. 17 min. 13 sec. + 14 hr. 28 min. 46 sec.

11. 24 hr. 27 min. 36 sec. + 18 hr. 29 min. 17 sec.

12. 10 hr. 43 min. 10 sec. + 11 hr. 16 min. 49 sec.

13. 38 hr. 21 min. 19 sec. + 21 hr. 10 min. 42 sec.

14. 14 hr. 24 min. 16 sec. + 15 hr. 29 min. 56 sec.

15. 36 hr. 42 min. 58 sec. + 24 hr. 16 min. 49 sec.

16. 17 hr. 24 min. 29 sec. + 21 hr. 37 min. 23 sec.

17. 36 hr. 18 min. 24 sec. + 32 hr. 44 min. 28 sec.

18. 24 hr. 17 min. 34 sec. + 18 hr. 48 min. 19 sec.

19. 17 hr. 36 min. 12 sec. + 28 hr. 54 min. 23 sec.

20. 43 hr. 12 min. 19 sec. + 27 hr. 19 min. 06 sec.

21. 18 hr. 27 min. 36 sec. + 22 hr. 53 min. 48 sec.

22. 36 hr. 42 min. 54 sec. + 14 hr. 28 min. 32 sec.

23. 42 hr. 17 min. 32 sec. + 17 hr. 49 min. 39 sec.

24. 23 hr. 52 min. 43 sec. + 12 hr. 19 min. 32 sec.

25. 20 hr. 54 min. 24 sec. + 30 hr. 12 min. 14 sec.

26. 12 hr. 48 min. 36 sec. + 10 hr. 20 min. 23 sec.

27. 12 hr. 56 min. 24 sec. + 11 hr. 14 min. 14 sec.

28. 14 hr. 54 min. 46 sec. + 13 hr. 17 min. 21 sec.

29. 32 hr. 56 min. 12 sec. + 28 hr. 24 min. 10 sec.

30. 30 hr. 54 min. 10 sec. + 26 hr. 22 min. 8 sec.

31. 28 hr. 52 min. 8 sec. + 24 hr. 20 min. 6 sec.

32. 26 hr. 50 min. 6 sec. + 22 hr. 18 min. 4 sec.


II. Add the given time.

(i) 24 minutes 42 seconds and 27 minutes 11 seconds

(ii) 32 minutes 19 seconds and 20 minutes 53 seconds

(iii) 2 hour 43 minutes 10 seconds and 8 hour 37 minutes 48 seconds

(iv) 6 years 8 months and 7 years 3 months

(v) 10 years 5 months and 12 years 9 months

(vi) 7 weeks 3 days and 5 weeks 2 days


Answers for the worksheet on addition of hours, minutes and seconds are given below.


Answers:


I. 1. 7 hr. 49 min. 38 sec.

2. 13 hr. 48 min. 36 sec.

3. 6 hr. 35 min. 37 sec.

4. 7 hr. 51 min. 54 sec.

5. 14 hr. 09 min. 53 sec.

6. 30 hr. 56 min. 50 sec.

7. 27 hr. 03 min. 52 sec.

8. 38 hr. 52 min. 50 sec.

9. 52 hr. 04 min. 53 sec.

10. 20 hr. 45 min. 59 sec.

11. 42 hr. 56 min. 53 sec.

12. 21 hr. 59 min. 59 sec.

13. 59 hr. 32 min. 01 sec.

14. 29 hr. 54 min. 12 sec.

15. 60 hr. 59 min. 47 sec.

16. 39 hr. 01 min. 52 sec.

17. 69 hr. 02 min. 52 sec.

18. 43 hr. 05 min. 53 sec.

19. 46 hr. 30 min. 35 sec.

20. 70 hr. 31 min. 25 sec.

21. 41 hr. 21 min. 24 sec.

22. 51 hr. 11 min. 26 sec.

23. 60 hr. 07 min. 11 sec.

24. 36 hr. 12 min. 15 sec.

25. 51 hr. 06 min. 38 sec.

26. 23 hr. 08 min. 59 sec.

27. 24 hr. 10 min. 38 sec.

28. 28 hr. 12 min. 07 sec.

29. 61 hr. 20 min. 22 sec.

30. 57 hr. 16 min. 18 sec.

31. 53 hr. 12 min. 14 sec.

32. 49 hr. 08 min. 10 sec.

Worksheet on Addition of Hours, Minutes and Seconds

II. (i) 51 minutes 53 seconds

(ii) 53 minutes 12 seconds

(iii) 11 hours 20 minutes 58 seconds

(iv) 13 years 11 months

(v) 23 years 2 months

(vi) 12 weeks 5 days




4th Grade Math Activities

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