This math topic involves calculating the elapsed time between two clock readings by determining how many minutes earlier the second clock shows compared to the first one. Each problem presents two different times, and students must calculate the negative time difference in minutes. The activity focuses on enhancing skills in reading clocks, computing differences in time, and understanding negative values for elapsed time, all within full-hour contexts. The problems are multiple-choice format with several answer options provided.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.