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Operations with Time

Directions: Use the digits 1 to 9, at most one time each, to fill in the boxes to make a time that is 4:37 pm.



How do we find out how many minutes it will be after a certain time? What part of the time represents the hour?
What part of the time represents the minutes?



There are many possible answers including anything where the time is at least ## minutes after 4:37 pm.

The earliest possible start time is 85 minutes after 3:12 pm.

Source: Robert Kaplinsky

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  1. I love this question!
    An excellent extension is to challenge students to find all possible solutions.

  2. This was easy (no offense)

  3. Cecilia Calvo Pesce

    Possible start times
    85 minutes after 3:12 pm and 82 minutes after 3:15 pm
    79 minutes after 3:18 pm and 78 minutes after 3:19 pm
    76 minutes after 3:21 pm and 71 minutes after 3:26 pm
    69 minutes after 3:28 pm and 68 minutes after 3:29 pm
    And my favorite solutions
    56 minutes after 3:41, 51 minutes after 3:46 pm, 46 minutes after 3:51 pm and 41 minutes after 3:56 pm

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