Solving exercises on pages 20 and 21 of Math Grade 3 Workbook Volume 2, Cánh Diều book.

Solving Grade 3 Math problems on pages 20 and 21 of Cánh Diều workbook volume 2.

Solving exercises on pages 20 and 21 of Math Grade 3 Workbook Volume 2, Cánh Diều book:

Practice

1. Solve Exercise 1 Page 20 Math Grade 3 Textbook

Exercise:

Solution guide:
- The number with more digits is greater.
- If two numbers have the same number of digits, compare each pair of digits in the same position, the number with the larger digit is greater.

Answer:

2. Solve Exercise 2 Page 20 Math Grade 3 Textbook

Exercise: Find the incorrect sentences and correct them.

Solution guide: Based on comparing numbers within the range of 100,000 to determine the incorrect sentences and correct them.

Answers:

3. Solve Exercise 3 Page 20 Math Grade 3 Textbook

Exercise: Given the following numbers:

a) Find the largest number.
b) Find the smallest number.
c) Arrange the numbers in descending order.

Solution guide: Compare the numbers and follow the instructions given in the problem.

Answers:

a) The largest number is 18,310.
b) The smallest number is 18,013.
c) The numbers arranged in descending order are 18,310, 18,103, 18,031, 18,013.

4. Solve Exercise 4 Page 20 Math Grade 3 Textbook

Problem: What is the number?

Solution guide: Counting up by 10,000, 1,000, 100, and 10 starting from the first number, then fill in the missing number in the blank box.

Answers:

5. Solve Exercise 5 Page 21 Math Grade 3 Textbook

Problem: Choose the letter placed under the drawing with the most rubber bands:

Solution guide: Compare the number of rubber bands in each box and select the letter placed under the drawing with the most rubber bands.

Answers:

So box C has the most rubber bands. We choose answer C.

6. Solve Exercise 6 Page 21 Math Grade 3 Textbook

Problem: Below is information about the lengths of some bridges in Vietnam. Read the names of those bridges in order from shortest to longest:

Solution guide: Compare the lengths of the bridges in the illustration then read the names of those bridges in order from shortest to longest.

Answers:

The names of the bridges in order from shortest to longest are: Long Bien Bridge, Cần Thơ Bridge, Bạch Đằng Bridge, Nhật Tân Bridge.

Here's the solution for exercises on pages 20 and 21 of Math Grade 3 Workbook Volume 2, Cánh Diều book. We hope you can easily complete the exercises for the Practice lesson, grasp the knowledge from the previous 5 lessons.