This math topic focuses on determining how many hours and minutes earlier one time is compared to another, specifically using negative elapsed time calculations. Students are asked to compare two times and find the difference in time to the nearest quarter hour. Each question provides two times, and students select the correct time difference from multiple choices. This set of problems hones skills in understanding and computing negative elapsed time, important for mastering time calculations for real-world scheduling and planning.

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