This math topic focuses on calculating elapsed time, specifically dealing with subtracting time (hence 'Negative') and figuring out resulting times on a clock. The students face problems that require determining time after certain hours and minutes have elapsed or subtracted from a given start time. The goal is to master interpreting clock times after specified changes and enhancing problem-solving skills regarding negative elapsed time. These skills are put to test through multipart questions presented with visual aids, likely clocks, making it well suited for advanced learners in the domain of time and clocks.

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