This math topic focuses on calculating the difference in time between two clock readings to determine how many minutes earlier one clock shows compared to another. It practices advanced skills in negative elapsed time calculation, requiring the student to figure out time differences in a variety of problems. Each problem presents two different times and asks the student to calculate how many minutes earlier the time on the second clock is compared to the first. Multiple-choice answers are provided for each question, making this topic suitable for reinforcing concepts of time measurement and arithmetic operations with negative values.

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