Solve Exercise 2 on Page 84 of Mathematics Textbook 4

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Ngày cập nhật gần nhất: 15/4/2026

Solve Exercise 2 on Page 84 of Mathematics Textbook 4: Division by Double-Digit Numbers (continued). Find the average distance traveled per minute by the person.

Solution Guide for Exercise 2 on Page 84 of Mathematics Textbook 4

Problem Statement:
Each cyclist travels 38 kilometers and 400 meters in 1 hour and 15 minutes. Find the average distance traveled per minute by the person.

Solution Method:
- Summary:
1 hour 15 minutes : 38 km 400 m
1 minute : ... m?
- Solution Approach:
+ Convert time units to minutes; length units to meters
+ To find the average distance traveled per minute by the person, divide the total distance traveled by the time taken for that distance.

Answer:
Conversion: 1 hour 15 minutes = 75 minutes
38 km 400 m = 38400m
The average distance traveled per minute by the person is:
38400 : 75 = 512 (m)
Answer: 512m.

Section Mathematics Exercise Grade 4 Page 84, Division by Double-Digit Numbers (continued) consists of Z exercises, Next is the solution to exercise 2 on page 84 of Mathematics Textbook 4. Mytour provides detailed answer suggestions and solution methods for Solve Exercise 1 on Page 84 Math Textbook 4, students need to grasp the knowledge of this lesson.

Frequently Asked Questions

What is the average distance traveled per minute by a cyclist in Exercise 2?

The average distance traveled per minute by the cyclist in Exercise 2 is 512 meters. This was calculated by dividing the total distance of 38 kilometers and 400 meters by the time taken of 75 minutes.

How do you convert hours and minutes into total minutes for calculations?

To convert hours and minutes into total minutes, first convert the hours to minutes by multiplying by 60, then add the remaining minutes. For example, 1 hour and 15 minutes equals 75 minutes.

What steps are involved in solving the problem from Mathematics Textbook 4?

The steps involved in solving the problem include converting the time from hours and minutes to total minutes, converting the distance from kilometers to meters, and then dividing the total distance by the total time to find the average distance per minute.

Why is it important to understand division by double-digit numbers in mathematics?

Understanding division by double-digit numbers is crucial as it enhances numerical literacy, aids in solving real-world problems, and forms the foundation for more advanced mathematical concepts encountered in higher grades.

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