Solving Math 3 Workbook Volume 2 exercises on pages 5, 6, 7, 8, the book Connect Knowledge with Real Life

Solve Grade 3 Math exercises on pages 5, 6, 7, 8 of Workbook Volume 2

Solving Math 3 Workbook Volume 2 exercises on pages 5, 6, 7, 8, the book Connect Knowledge with Real Life:

Four-digit numbers. Number 10,000

Activity 1
 

1. Solve Exercise 1 Page 5 Math Grade 3 Textbook

Problem: Choose the appropriate number to match the reading.

Guidance: Students write numbers sequentially from thousands, hundreds, tens, to units.

Answers:
A. Three thousand six hundred seventy-four: 3 674
B. Three thousand sixty-seven: 3 067
C. Four thousand seven: 4 007
D. Eight thousand six hundred forty: 8 640

2. Solve Exercise 2 Page 5 Math Grade 3 Textbook

Problem: Number?

Instructions: Count one more unit sequentially from left to right and fill in the missing number in the blank box.

Answers:

3. Solve Exercise 3 Page 5 Math Grade 3 Textbook

Problem: Number?

Step-by-step guide: Write the numbers: Write the digits of thousands, hundreds, tens, and units respectively from left to right.

Answer:

4. Solve Exercise 4 Page 6 Math Book Grade 3

Problem statement: Robots write rounded numbers on each signboard along the road to the castle (as shown in the picture). Ask which number is written on each signboard with the symbol '?'?

Step-by-step guide: Count the rounded numbers, starting from 1,000 and then fill in the appropriate numbers in the blank spaces.

Answer:

Activity 2

1. Solve Exercise 1 Page 6 Math Book Grade 3

Write down and read the numbers composed of:
a) 2 thousand, 9 hundred, 4 tens, and 5 units.
b) 5 thousand, 0 hundred, 7 tens, and 2 units.
c) 6 thousand, 3 hundred, 0 tens, and 1 unit.
d) 8 thousand, 0 hundred, 6 tens, and 0 units.

Solution:
- Write down the numbers: Write the digits of thousands, hundreds, tens, and units respectively from left to right.
- Read the numbers: Read the four-digit numbers just written.

Answer:
a) The number consists of: 2 thousand, 9 hundred, 4 tens, and 5 units.
Written as: 2 945. Read as: Two thousand nine hundred forty-five.
b) The number consists of: 5 thousand, 0 hundred, 7 tens, and 2 units.
Written as: 5 072. Read as: Five thousand seventy-two.
c) The number consists of: 6 thousand, 3 hundred, 0 tens, and 1 unit.
Written as: 6 301. Read as: Six thousand three hundred one.
d) The number consists of: 8 thousand, 0 hundred, 6 tens, and 0 units.
Written as: 8 060. Read as: Eight thousand sixty.

2. Solve Exercise 2 Page 7 Math Book Grade 3

Problem Statement:
a) What is the number immediately before 10,000?
b) What is the number immediately after 8,999?
c) What number is immediately after 9,000?
d) What is the number immediately before 4,078?

Solution:
- The number immediately before a number is 1 less than that number.
- The number immediately after a number is 1 greater than that number.

Answer:
a) The number immediately before 10,000 is 9,999.
b) The number immediately after 8,999 is 9,000.
c) The number 9,000 is immediately after 8,999.
d) The number immediately before 4,078 is 4,077.

3. Solve Exercise 3 Page 7 Math Book Grade 3

Problem Statement: Choose the correct answer.
a) Which of the following numbers has a hundreds digit of 7?
A. 8,275 B. 7,285 C. 5,782 D. 2,587
b) Which of the following numbers has a tens digit of 7?
A. 8,275 B. 7,285 C. 5,782 D. 2,587
c) Which of the following numbers has a thousands digit of 7?
A. 8,275 B. 7,285 C. 5,782 D. 2,587

Solution: Identify the digits of thousands, hundreds, tens, and units of each given number, then choose the correct answer according to the requirements of the problem statement.

Answer:
a) The number with a hundreds digit of 7 is 5,782. Choose C.
b) The number with a tens digit of 7 is 8,275. Choose A.
c) The number with a thousands digit of 7 is 7,285. Choose B.

4. Solve Exercise 4 Page 7 Math Book Grade 3

Problem Statement: Below are the houses of Nam, Viet, and Mai.

Given: - Viet's house has trees planted in front of it.
- Mai's house has circular-shaped windows.
Find out the number written on each friend's house and read that number.

Solution:
Step 1: Based on the given conditions and observation of the illustration, we identify the houses of Nam, Viet, and Mai.
Step 2: Determine the digits on each friend's house and then read those numbers.

Answer:
According to the problem and observation of the illustration, we have:
- Viet's house has trees planted in front, so the number written on Viet's house is 3,405.
The number 3,405 is read as: three thousand four hundred five.
- Mai's house has circular-shaped windows, so the number written on Mai's house is 6,450.
The number 6,450 is read as: six thousand four hundred fifty.
- The remaining house belongs to Nam, and the number written on Nam's house is 10,000.
The number 10,000 is read as: ten thousand.

Practice

1. Solve Exercise 1 Page 8 Math Book Grade 3

Write down and read the numbers, knowing that they consist of:
a) Eight thousand, four hundred, seventy, two units.
b) Six thousand, five hundred, nine units.
c) Three thousand, seven hundred, sixty.

Solution Method:
- Write the numbers: Write the digits of thousands, hundreds, tens, and units respectively from left to right.
- Read the numbers: Read the four-digit numbers just written.

Answer:
a) Eight thousand, four hundred, seventy, two units.
Written as: 8,472. Read as: Eight thousand four hundred seventy-two.
b) Six thousand, five hundred, nine units.
Written as: 6,509. Read as: Six thousand five hundred nine.
c) Three thousand, seven hundred, sixty.
Written as: 3,760. Read as: Three thousand seven hundred sixty.

2. Solve Exercise 2 Page 8 Math Book Grade 3

Problem Statement: Number?

Solution Method:
a) Add 100 units and then write the missing hundreds numbers in the blank spaces.
b) Add 10 units and then write the missing tens numbers in the blank spaces.

Answer:

3. Solve Exercise 3 Page 8 Math Book Grade 3

Problem Statement: Number?

Solution Method:
- Analyze the four-digit number into the sum of thousands, hundreds, tens, and units.
- If a digit of a place value is 0, there is no need to write the value of that place when analyzing the number.

Answer:

4. Solve Exercise 4 Page 8 Math Book Grade 3

Problem Statement: Viet has two old books, each missing a page, the remaining pages are as shown in the picture. Ask which pages are missing from the book?

Solution Method:
- One sheet has two pages, so each book missing 1 sheet means each book has lost 2 pages.
- Observe the illustration, determine the number of pages lost from each book.

Answer:
The pages lost from book 1 are: 1,505 and 1,506.
The pages lost from book 2 are: 1,999 and 2,000.

5. Solve Exercise 5 Page 8 Math Book Grade 3

Problem Statement: Choose the correct answer.

From the given number tags, how many four-digit numbers can be formed?

Solution Method:
- Choose 1 digit as the thousands digit, then choose another digit (different from the previous one) as the hundreds digit, choose another digit (different from the previous two) as the tens digit, and choose another digit (different from the previous three) as the units digit.
For example, choosing digit 2 as the thousands digit yields 3 numbers: 2,004; 2,040; and 2,400.
- Repeat this process to form other four-digit numbers.
Note: The thousands digit must be different from 0.

Answer:
Choosing digit 2 as the thousands digit yields 3 numbers: 2,004; 2,040; and 2,400.
Choosing digit 4 as the thousands digit yields 3 numbers: 4,002; 4,020; and 4,200.
Thus, from the 4 given number tags, we can form 6 four-digit numbers: 2,004; 2,040; 2,400; 4,002; 4,020; 4,200.

Undoubtedly, solving exercises on pages 5, 6, 7, 8 of Math Book Grade 3 Workbook 2, the book 'Connecting Knowledge with Life', will be a good resource for learning about four-digit numbers, particularly the number 10,000. Instead of copying, remember to read through the solution methods to understand and visualize the process.