Solve Exercise 4 on Pages 31 and 32 of Math 5 Textbook

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Ngày cập nhật gần nhất: 15/4/2026

Solve exercise 4 on pages 31 and 32 of Math 5 textbook, focusing on calculating the age of each person.

Guidance on solving exercise 4 on pages 31 and 32 of Math 5 textbook

Problem statement:
This year, the father's age is 4 times the son's age. Calculate the age of each person, knowing that the father is 30 years older than the son.

Solution method:
- Given the problem:
+ Father is 30 years older than the son
+ Father's age is 4 times the son's age
- Required: Find the ages of the father and the son.
- Solution approach: Convert the problem into a problem of finding two numbers when the ratio is known.
+ Step 1: Summarize the problem using a number line diagram (note: divide the line segments equally)
+ Step 2: Determine the number of parts the father's age exceeds the son's age
+ Step 3: Find the ages of each part
+ Step 4: Find the son's age
+ Step 5: Using the son's age (the result just found) and the given conditions of the problem, find the father's age.
+ Step 6: Conclusion.

Above is the guidance for solving exercises 4 on pages 31 and 32 of Math 5 textbook. In addition, this section also includes 3 other exercises: Solve Exercise 1 on Pages 31 and 32 of Math 5 Textbook, Solve Exercise 2 on Pages 31 and 32 of Math 5 Textbook and Solve Exercise 3 on Pages 31 and 32 of Math 5 Textbook. Let's explore the guidance on solving exercises on pages 31 and 32 of Math 5 to excel in 5th-grade math.

Frequently Asked Questions

What is the relationship between the father's age and the son's age in the exercise?

In the exercise, the father's age is four times the son's age. Additionally, it is given that the father is 30 years older than the son, which establishes a clear mathematical relationship between their ages.

How can I calculate the ages of the father and son based on the problem statement?

To calculate the ages, summarize the problem using a number line to visualize the ages. Then, determine the parts of the father's age exceeding the son's age, find the son's age, and subsequently use it to calculate the father's age using the established conditions.

Are there additional exercises provided in the Math 5 textbook guidance?

Yes, in addition to exercise 4, the guidance also includes exercises 1, 2, and 3 on pages 31 and 32 of the Math 5 textbook, providing a comprehensive approach to practicing 5th-grade math concepts.

What are the key steps to solve exercise 4 in the Math 5 textbook?

The key steps to solve exercise 4 include summarizing the problem, determining the relationship of ages using a number line, calculating the number of parts for the father's age, and using that to find both the father's and son's ages based on the given conditions.

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