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Grade 3 - Mathematics
7.5 Elapsed Time

Method:

  1. 4:30 is also read as half past 4. (because 30 minutes makes half an hour)
  2. 4:15 is also read as quarter past 4. (because 15 minutes makes quarter hour)
  3. 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: 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?
1:00
11:00
2:00
12:00

 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 am
7:50 pm
7:45 pm
7:45 am

Q 3: 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?
5:00
6:00
5:45
5:15

 Q 4: 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 hours
ten and a half hours
eleven hours
eleven and a half hours

Q 5: I started jogging at 6 o'clock. I finished at 6:45. How long did I jogged.
30 minutes
1 hour
1 hour and 10 minutes
45 minutes

 Q 6: Mike played basketball for 3 and 1/2 hours. He started at 6. When did he finish?
8:30
10:00
9:30
7:00

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 Question 8: This question is available to subscribers only!


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