Solve Exercise 1 on Page 26 of Math 4 Textbook

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Ngày cập nhật gần nhất: 15/4/2026

Solve Exercise 1 on Page 26 of Math 4 Textbook in Practice Section: How many days does a leap year have? And how many days does a non-leap year have?

Step-by-step solution for Exercise 1 on Page 26 of Math 4 Textbook

Problem Statement:
a) List months with: 30 days; 31 days; 28 or 29 days
b) State: A leap year is a year where February has 29 days
Non-leap years have February with 28 days
Question: How many days in a leap year? How many days in a non-leap year?

Solution Method:
1. Key knowledge about days/months:
A year has 12 months, among them:
- 7 months with 31 days are: January, March, May, July, August, October, December.
- 4 months with 30 days are: April, June, September, November.
- February has 28 days (non-leap year) or 29 days (leap year).
- Every 4 years, February has 29 days.
2. Memory trick for the number of days in a month:
- Clasp both hands, press down, and place them side by side, counting from 1 to 12, from left to right from the raised U-shaped joint of the left hand to the hollow part.
- The raised joint on both hands is the months with 31 days.
- The hollow part is the months with 30 days.
- Except for February, which has 28 or 29 days.

Answer:
a)
- Months with 30 days: April, June, September, November.
- Months with 31 days: January, March, May, July, August, October, December.
- Only February has 28 or 29 days (leap year).
b) Leap year has 366 days, non-leap year has 365 days.

Mytour has just provided guidance for solving Exercise 1 on page 26 of Math 4 Textbook. In addition, there are also exercises Solve Exercise 2 on Page 26 of Math 4 Textbook, Solve Exercise 3 on Page 26 of Math 4 Textbook, Solve Exercise 4 on Page 26 of Math 4 Textbook, and Solve Exercise 5 on Page 26 of Math 4 Textbook. We also suggest solving them with the provided methods. Let's check the guide to solving exercises on page 26 math 4 to excel in 4th-grade math!

Frequently Asked Questions

How many days are there in a leap year compared to a non-leap year?

A leap year contains 366 days, while a non-leap year has 365 days. This extra day in February, which has 29 days during leap years, accounts for the additional day.

What are the months with 30 and 31 days in a year?

In a year, there are seven months with 31 days: January, March, May, July, August, October, and December. Four months have 30 days: April, June, September, and November. February has 28 or 29 days.

What is the significance of February in determining leap years?

February is significant because it is the only month that changes based on leap year status. In a leap year, February has 29 days, while in a non-leap year, it has 28 days.

How can students easily remember the number of days in each month?

Students can use a memory trick involving their hands. By clasping their hands together and counting the raised and hollow joints, they can remember which months have 31 days versus 30 days, with February being the exception.

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