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Guidance on solving exercises 4 on pages 137 and 138 of Math 5 textbook
Solution method:
To calculate the travel time of a train, follow these steps: Subtract the departure time from the arrival time, and optionally subtract the resting time if applicable.
=> Apply this method by substituting the corresponding values to find the most accurate result.
Answers:
a) Travel time from Hanoi to Quan Trieu is:
17 hours 25 minutes - 14 hours 20 minutes = 3 hours 5 minutes.
b) Travel time from Hanoi to Dong Dang is:
11 hours 30 minutes - 5 hours 45 minutes = 5 hours 45 minutes.
c) Travel time from Hanoi to Hai Phong is:
8 hours 10 minutes - 6 hours 5 minutes = 2 hours 5 minutes.
d) Travel time from Hanoi to Lao Cai is:
(24 hours - 22 hours) + 6 hours = 8 hours.
Answers: a) 3 hours 5 minutes;
b) 5 hours 45 minutes;
c) 2 hours 5 minutes;
d) 8 hours.
Here is the solution guide for exercise 4 on page 138 of Math 5 textbook, focusing on concentrated practice. Additionally, this section includes other exercises such as solving exercise 2 on pages 137 and 138 of Math 5 textbook and Solving exercise 3 on pages 137 and 138 of Math 5 textbook. Let's check out the guidance on Solving Math 5 exercises on pages 137 and 138 to excel in Math for grade 5!
