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#### Study Guide Time Mathematics, Grade 4

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ELAPSED TIME IN HOURS AND HALF HOURS What Is Elapsed Time? Elapsed time is the amount of time from the start of an activity to the end of the activity. It tells how long an activity lasted. Elapsed time can be measured in seconds, minutes, and hours. How to figure out elapsed time: To figure out elapsed time in hours, find out when an event started and when it ended so you can figure out how long the event lasted. Example: The music lesson started at 4:00 p.m. and ended at 5:30 p.m. How long did the music lesson last? 1 hour and 30 minutes Example: The music lesson started at 4:00 p.m. and lasted one hour and 30 minutes. What time did the music lesson end? 5:30 p.m. Example: The music lesson was one hour and 30 minutes long and ended at 5:30 p.m. What time did the music lesson start? 4:00 p.m. © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.
Try This! 1. Carissa is making brownies. They need to back for 45 minutes. She put them in the oven at 6:30 PM. At what time should she take them out? ________________________ 2. An airplane left the Atlanta Airport at 9:05 AM and arrived at Tampa, Florida at 11:45 AM. How long did the trip take? ________________________ 3. One hour and 10 minutes after he started a bike hour, Carl completed the tour. If he finished at 9:35 AM, what time did he start the tour? ____________________ © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.