This math topic focuses on calculating elapsed time with negative intervals in hours. Students are presented with a starting time and asked to calculate the new time after subtracting a specific number of hours. Each problem presents a clock time and a negative time change directive, such as "Subtract 1 hr" or "Subtract 3 hrs", and students need to determine the resulting time. Multiple choice visuals are provided as potential answers to each question, allowing students to visualize the options and enhance their understanding of time subtraction skills.

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