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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: Your uncle and aunt have come to visit for the day! They arrive at 9 o'clock. They went back at 7:30. How long did they stay?ten hoursten and a half hourseleven hourseleven and a half hours Q 2: The coach asked the player to practice for forty-five minutes each morning. Their practice starts at 7. When did they finish practice?7:50 pm7:45 pm7:50 am7:45 am Q 3: It is 3 o'clock. I finished my homework at 6:40. How long did I do homework?3:304:003:404:30 Q 4: The concert started at 8 and finished at 10:30. How long did the concert last?2hrs. and 30 minutes2 hours3 hr. and 30 minutes3 hours Q 5: The bell rings at 8. The class starts 25 minutes after the bell rings. When does the class start?8:158:208:308:25 Q 6: I started jogging at 6 o'clock. I finished at 6:45. How long did I jogged.1 hour and 10 minutes30 minutes45 minutes1 hour Q 7: Jacob finished his homework after working on it for thirty-five minutes. He started at 4:15. What time did he complete his homework?5:104:454:554:50 Q 8: Measha woke up at 7 in the morning. After 6 hours she has a dentist appointment. What time does she need to see the dentist?11:002:0012:001:00 Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!