Open Middle®
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.
Hint
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?
What part of the time represents the minutes?
Answer
There are many possible answers but the earliest possible start time is 85 minutes after 3:12 pm. Check the comments for more possibilities.
Source: Robert Kaplinsky
I love this question!
An excellent extension is to challenge students to find all possible solutions.
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
28 minutes after 4:13
Wow! this help me to get better at time!And now I love time .
28 minutes after 4:13
13 minutes after 4:24