← Video length sums lesson New set →

Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 288 · 40 questions
TalentJR

Creator's tip (Add the clips): Video length = the clips added up. Minutes → seconds: × 60, then add the extra seconds. Seconds → minutes: take away 60 as many times as it fits. Still needed = target − what you have; 2× speed halves the time, half speed doubles it.

NameDateTime takenScore ___ / 40
  1. 1.⏱️ A video has three clips of 41, 8 and 25 seconds. How long is the video (in seconds)?
  2. 2.⏱️ How many seconds is 5 minutes 17 seconds?
  3. 3.⏱️ A 40-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  4. 4.⏱️ How many seconds is 6 minutes 50 seconds?
  5. 5.⏱️ How many seconds is 8 minutes 20 seconds?
  6. 6.⏱️ How many seconds is 5 minutes 7 seconds?
  7. 7.⏱️ How many seconds is 6 minutes 47 seconds?
  8. 8.⏱️ Your video must be 90 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  9. 9.⏱️ How many seconds is 2 minutes 20 seconds?
  10. 10.⏱️ A video is 270 seconds long. How long is that in minutes and seconds? (a) 2 min 70 s (b) 5 min 30 s (c) 4 min 0 s (d) 4 min 30 s
  11. 11.⏱️ How many seconds is 6 minutes 52 seconds?
  12. 12.⏱️ A 42-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  13. 13.⏱️ A video is 120 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 3 min 0 s (c) 2 min 0 s (d) 1 min 20 s
  14. 14.⏱️ Your video must be 90 seconds long. Your clips add up to 54 seconds. How many more seconds of video do you need?
  15. 15.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  16. 16.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  18. 18.⏱️ A video is 490 seconds long. How long is that in minutes and seconds? (a) 9 min 10 s (b) 8 min 40 s (c) 8 min 10 s (d) 4 min 90 s
  19. 19.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ Your video must be 90 seconds long. Your clips add up to 30 seconds. How many more seconds of video do you need?
  21. 21.⏱️ How many seconds are in 1 minute? (a) 100 (b) 10 (c) 60 (d) 30
  22. 22.⏱️ How many seconds is 6 minutes 51 seconds?
  23. 23.⏱️ A video has three clips of 35, 47 and 27 seconds. How long is the video (in seconds)?
  24. 24.⏱️ A video is 255 seconds long. How long is that in minutes and seconds? (a) 5 min 15 s (b) 4 min 45 s (c) 2 min 55 s (d) 4 min 15 s
  25. 25.⏱️ How many seconds is 4 minutes 32 seconds?
  26. 26.⏱️ A video has three clips of 6, 9 and 54 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  28. 28.⏱️ How many seconds is 9 minutes 41 seconds?
  29. 29.⏱️ A video is 575 seconds long. How long is that in minutes and seconds? (a) 9 min 35 s (b) 9 min 5 s (c) 5 min 75 s (d) 10 min 35 s
  30. 30.⏱️ A video is 440 seconds long. How long is that in minutes and seconds? (a) 7 min 20 s (b) 7 min 50 s (c) 8 min 20 s (d) 4 min 40 s
  31. 31.⏱️ A video is 300 seconds long. How long is that in minutes and seconds? (a) 5 min 0 s (b) 3 min 0 s (c) 5 min 30 s (d) 6 min 0 s
  32. 32.⏱️ A 58-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  33. 33.⏱️ A video has three clips of 16, 13 and 51 seconds. How long is the video (in seconds)?
  34. 34.⏱️ Your video must be 90 seconds long. Your clips add up to 29 seconds. How many more seconds of video do you need?
  35. 35.⏱️ A 50-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  36. 36.⏱️ A 66-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  37. 37.⏱️ A video is 415 seconds long. How long is that in minutes and seconds? (a) 4 min 15 s (b) 6 min 55 s (c) 7 min 55 s (d) 6 min 25 s
  38. 38.⏱️ A video has three clips of 16, 20 and 44 seconds. How long is the video (in seconds)?
  39. 39.⏱️ A video is 330 seconds long. How long is that in minutes and seconds? (a) 5 min 0 s (b) 3 min 30 s (c) 5 min 30 s (d) 6 min 30 s
  40. 40.⏱️ A 30-second clip is sped up to 3× speed. How long does it last now (in seconds)?

Answer key

  1. 74
  2. 317
  3. 10
  4. 410
  5. 500
  6. 307
  7. 407
  8. 78
  9. 140
  10. 4 min 30 s
  11. 412
  12. 14
  13. 2 min 0 s
  14. 36
  15. 48
  16. 26
  17. 12
  18. 8 min 10 s
  19. 16
  20. 60
  21. 60
  22. 411
  23. 109
  24. 4 min 15 s
  25. 272
  26. 69
  27. 40
  28. 581
  29. 9 min 35 s
  30. 7 min 20 s
  31. 5 min 0 s
  32. 29
  33. 80
  34. 61
  35. 25
  36. 33
  37. 6 min 55 s
  38. 80
  39. 5 min 30 s
  40. 10

Free animation and design lessons, practice and worksheets at talentjr.in/animation-for-kids