Solving Exercise 3 on Page 61 Math 4 Textbook

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Ngày cập nhật gần nhất: 15/4/2026

Solving Exercise 3 on Page 61 Math 4 Textbook about Associative Property of Multiplication. There are 8 classrooms, each with 15 sets of desks and chairs with 2 students studying.

Step-by-step solution for Exercise 3 on Page 61 Math 4 Textbook

Problem Statement:
There are 8 classrooms, each with 15 sets of desks and chairs, and 2 students are studying in each set. How many students are studying in total?

Solution Method:
- Given: 8 classrooms, 15 sets of desks and chairs, 2 students per set
- Requirement: Calculate total number of students studying
- Approach:
+ Calculate students per classroom by multiplying sets of desks and chairs by students per set
+ Total students studying by multiplying students per classroom by number of classrooms.

Answer:
Students per classroom:
2 x 15 = 30 (students)
Total students studying:
30 x 8 = 240 (students)
Answer: 240 students.

Part solution for exercise page 61 math 4, Associative property of multiplication includes 3 exercises. Next, the solution for exercise 3 page 61 Mathematics grade 4 textbook. Mytour provides hints and detailed solution methods for solving Exercise 1 Page 61 Math 4 Textbook and solving Exercise 2 Page 61 Math 4 Textbook of this lesson.

Frequently Asked Questions

What is the Associative Property of Multiplication in Mathematics?

The Associative Property of Multiplication states that the way in which numbers are grouped in multiplication does not change their product. For example, (2 x 3) x 4 is the same as 2 x (3 x 4), both yielding the same result.

How many students are studying in total in the 8 classrooms?

There are 240 students studying in total across the 8 classrooms. This is calculated by first determining that each classroom has 30 students, resulting from 15 sets of desks with 2 students each.

What is the step-by-step method to solve Exercise 3 on Page 61?

To solve Exercise 3, first multiply the number of sets of desks (15) by the number of students per set (2) to find 30 students per classroom. Then, multiply the number of classrooms (8) by 30 to get a total of 240 students.

Why is it important to understand the Associative Property in multiplication?

Understanding the Associative Property in multiplication helps in simplifying calculations and reinforces the concept that grouping does not affect the final product, which is crucial for solving complex mathematical problems efficiently.

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