This math topic focuses on calculating the elapsed time, specifically determining how many minutes earlier a second clock shows compared to a first clock. The scenarios are set at quarter-hour intervals and require the students to discern negative differences in time between two clock times shown. Each of the multiple-choice problems offers students options ranging from 0 minutes to 180 minutes, assessing their skills in working with time subtraction and understanding of quarter hours. The problems are geared towards practical application of elapsed time concepts, including negative values.

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