This math topic focuses on calculating the difference in time, specifically determining how many hours and minutes earlier one time is compared to another. Students are presented with pairs of times and must compute the elapsed time between them, denoting the result in terms of hours and minutes. This skill set, known as negative elapsed time calculation, sharpens students' ability to subtract times and interpret the results contextually, using real-life scenarios such as comparing clock times.
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How many hours and minutes earlier is the second clock?
2:15 vs. 1:40