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### Grade 3 - Mathematics7.5 Elapsed Time

 Method: 4:30 is also read as half past 4. (because 30 minutes makes half an hour) 4:15 is also read as quarter past 4. (because 15 minutes makes quarter hour) The elapsed time is the difference between two intervals of time. Example: The show started at 2.20 pm and ended at 3.45 pm. How long did the show go on? Start time = 2:20 End time = 3:45 Time elapsed = 3:45 - 2:20 (2:20 to 3:20 is 1 hour, 3:20 to 3:45 is 25 minutes) 1 hour 25 minutes Answer: 1:25 Directions: Answer the following. Also write at least 10 examples of your own.
 Q 1: The concert started at 8 and finished at 10:30. How long did the concert last?3 hours3 hr. and 30 minutes2 hours2hrs. and 30 minutes Q 2: Jacob finished his homework after working on it for thirty-five minutes. He started at 4:15. What time did he complete his homework?4:555:104:504:45 Q 3: The coach asked the player to practice for forty-five minutes each morning. Their practice starts at 7. When did they finish practice?7:45 pm7:50 am7:45 am7:50 pm Q 4: The airport requests that all passengers report to the airport forty-five minutes before their flight. If Jennifer is taking a 6 o'clock flight. When should she arrive at the airport?5:456:005:155:00 Question 5: This question is available to subscribers only! Question 6: This question is available to subscribers only!

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