Time Units and Calendar Facts · graine 1 · A4, économe en encre. Le corrigé s'imprime sur sa propre page, pour les adultes.
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Seconds, months, and leap years

Mathématiques · Mesures · de 7 à 8 ans
Nom ______________________   Date ____________
  1. True or false? One minute equals 60 seconds.

    En entourer un :   Vrai   Faux

  2. How many seconds are in 1 minute?

    • 6
    • 60
    • 100
    • 600
  3. How many seconds are in one minute?

    0204060
    • 50
    • 60
    • 100
  4. A leap year has 366 days.

    En entourer un :   Vrai   Faux

  5. How often does a leap year happen?

    2026202720282029
    • Every year
    • Every 4 years
    • Every 10 years
  6. A timer runs for 72 seconds. How many hours is that? Give your answer as a decimal.

    Réponse : ______________

  7. A song lasts 4800 seconds. How many minutes is that?

    Réponse : ______________

  8. Which of these months has 30 days?

    JanFebMarApr
    • April
    • January
    • March
  9. Ben says, 'Every month has exactly 30 days.' What is wrong with what Ben said?

    • Months only have 28 days
    • Nothing, he is right
    • Some months have 31 days, and February has 28 or 29
  10. A movie is 4 hours long. How many seconds is that?

    Réponse : ______________

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Corrigé

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Seconds, months, and leap years W1-mt_EXlmTURK_o-s1

  1. Vrai · This is the basic rule for turning minutes into seconds.
  2. 60 · A minute is always made of 60 seconds.
  3. 60 · A minute always has 60 seconds. Try counting slowly and you will feel how long that is.
  4. Vrai · Every four years, February gets one extra day, so the whole year adds up to 366 days.
  5. Every 4 years · Every four years, one extra day is added to February, making that year a leap year.
  6. 0.02 · There are 3600 seconds in an hour, so small numbers of seconds make tiny decimal hours.
  7. 80 · Dividing seconds by 60 tells you how many minutes you have.
  8. April · April has 30 days. January and March each have 31 days.
  9. Some months have 31 days, and February has 28 or 29 · Months are not all the same length. Some have 31 days, and February is shorter still.
  10. 14400 · You can go from hours to seconds by passing through minutes first.
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