This math topic focuses on advanced elapsed time calculations where the changes involve negative time intervals. The problems require students to determine the new time after a specified decrease (negative change) in time, starting from a given clock reading. Each question provides multiple-choice answers and it is classified under level 3 difficulty, suggesting these exercises are appropriate for students who are already familiar with time calculations and seeking more challenging scenarios. The exercises are intended to enhance the ability to compute time differences when involving backwards (negative) calculations.
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What will the time be after the given change?