Solve Exercise 3 Page 26 Math Textbook for 4th Grade

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Ngày cập nhật gần nhất: 15/4/2026

Solve exercise 3 on page 26 of Math textbook for 4th grade in Practice, What year was Nguyễn Trãi born? Which century does that year belong to?

Guide to solve exercise 3 on page 26 of Math textbook for 4th grade

Problem:
a) Quang Trung defeated the Qing army in 1789. Which century does that year belong to?
b) The 600th anniversary of Nguyễn Trãi's birth was celebrated in 1980. So what year was Nguyễn Trãi born? Which century does that year belong to?

Solution Method:
* Observation: All given years are four-digit numbers.
* Method to determine which century a year belongs to: Take the first two digits of the year + 1

Answer:
a) The year 1789 belongs to the 18th century
b) Nguyễn Trái was born in the year 1380. That year belongs to the 14th century

Mytour has just provided guidance on solving Exercise 3 on page 26 of Math textbook for 4th grade. Additionally, there are exercises Solve Exercise 1 Page 26 Math Textbook for 4th Grade, Solve Exercise 2 Page 26 Math Textbook for 4th Grade, Solve Exercise 4 Page 26 Math Textbook for 4th Grade and Solve Exercise 5 Page 26 Math Textbook for 4th Grade that we also suggest solving along with the methods. Let's check out the solution guide for Exercise 26 Math Grade 4 to study math for 4th grade effectively.

Frequently Asked Questions

How do you determine the century for a given year in math?

To determine the century for a given year, take the first two digits of the year and add one. For example, for the year 1789, the first two digits are 17, and adding one results in the 18th century.

What year was Nguyễn Trãi born, and which century does it belong to?

Nguyễn Trãi was born in the year 1380. This year belongs to the 14th century, as determined by taking the first two digits of the year and adding one to find its century.

What historical event did Quang Trung accomplish in 1789?

In 1789, Quang Trung defeated the Qing army, a significant historical event in Vietnamese history that contributed to the country’s independence and resistance against foreign invaders.

What resources are available for solving exercises in the 4th-grade math textbook?

Resources available for solving exercises in the 4th-grade math textbook include guidance for Exercises 1 through 5 on page 26. These solutions assist students in understanding and mastering mathematical concepts effectively.

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