Place Value Practice worksheet for students to identify the value of underlined digits in numbers.

Problem Description:

The task is to determine the place value of the underlined digit in each number provided. Place value refers to the value of a digit based on its position in a number.

Solution Approach:

1. Identify the position of the underlined digit in each number.
2. Determine the place value of that position (e.g., ones, tens, hundreds, thousands, etc.).
3. Write the value of the digit based on its place value.

Step-by-Step Solution:

#### 1. 536,708
- Underlined digit: 5
- Position: Hundred-thousands place
- Place value: \(5 \times 100,000 = 500,000\)
- Answer: 500,000

#### 2. 450,952
- Underlined digit: 4
- Position: Hundred-thousands place
- Place value: \(4 \times 100,000 = 400,000\)
- Answer: 400,000

#### 3. 3,612
- Underlined digit: 3
- Position: Thousands place
- Place value: \(3 \times 1,000 = 3,000\)
- Answer: 3,000

#### 4. 45
- Underlined digit: 4
- Position: Tens place
- Place value: \(4 \times 10 = 40\)
- Answer: 40

#### 5. 78,910
- Underlined digit: 7
- Position: Ten-thousands place
- Place value: \(7 \times 10,000 = 70,000\)
- Answer: 70,000

#### 6. 34,100
- Underlined digit: 3
- Position: Ten-thousands place
- Place value: \(3 \times 10,000 = 30,000\)
- Answer: 30,000

#### 7. 379,124
- Underlined digit: 3
- Position: Hundred-thousands place
- Place value: \(3 \times 100,000 = 300,000\)
- Answer: 300,000

#### 8. 8,546
- Underlined digit: 8
- Position: Thousands place
- Place value: \(8 \times 1,000 = 8,000\)
- Answer: 8,000

#### 9. 924
- Underlined digit: 9
- Position: Hundreds place
- Place value: \(9 \times 100 = 900\)
- Answer: 900

#### 10. 10,154,872
- Underlined digit: 1
- Position: Millions place
- Place value: \(1 \times 1,000,000 = 1,000,000\)
- Answer: 1,000,000

#### 11. 1,999,777
- Underlined digit: 1
- Position: Millions place
- Place value: \(1 \times 1,000,000 = 1,000,000\)
- Answer: 1,000,000

#### 12. 50
- Underlined digit: 5
- Position: Tens place
- Place value: \(5 \times 10 = 50\)
- Answer: 50

#### 13. 941
- Underlined digit: 9
- Position: Hundreds place
- Place value: \(9 \times 100 = 900\)
- Answer: 900

#### 14. 460,701
- Underlined digit: 4
- Position: Hundred-thousands place
- Place value: \(4 \times 100,000 = 400,000\)
- Answer: 400,000

#### 15. 12
- Underlined digit: 1
- Position: Tens place
- Place value: \(1 \times 10 = 10\)
- Answer: 10

#### 16. 16,345,682
- Underlined digit: 1
- Position: Ten-millions place
- Place value: \(1 \times 10,000,000 = 10,000,000\)
- Answer: 10,000,000

#### 17. 7,521,930
- Underlined digit: 7
- Position: Millions place
- Place value: \(7 \times 1,000,000 = 7,000,000\)
- Answer: 7,000,000

#### 18. 4,000,825
- Underlined digit: 4
- Position: Millions place
- Place value: \(4 \times 1,000,000 = 4,000,000\)
- Answer: 4,000,000

#### 19. 79,5386
- Underlined digit: 7
- Position: Ten-thousands place
- Place value: \(7 \times 10,000 = 70,000\)
- Answer: 70,000

#### 20. 20,123
- Underlined digit: 2
- Position: Ten-thousands place
- Place value: \(2 \times 10,000 = 20,000\)
- Answer: 20,000

Final Answers:

1. 500,000
2. 400,000
3. 3,000
4. 40
5. 70,000
6. 30,000
7. 300,000
8. 8,000
9. 900
10. 1,000,000
11. 1,000,000
12. 50
13. 900
14. 400,000
15. 10
16. 10,000,000
17. 7,000,000
18. 4,000,000
19. 70,000
20. 20,000

Boxed Final Answer:

\[
\boxed{
\begin{array}{ll}
1. & 500,000 \\
2. & 400,000 \\
3. & 3,000 \\
4. & 40 \\
5. & 70,000 \\
6. & 30,000 \\
7. & 300,000 \\
8. & 8,000 \\
9. & 900 \\
10. & 1,000,000 \\
11. & 1,000,000 \\
12. & 50 \\
13. & 900 \\
14. & 400,000 \\
15. & 10 \\
16. & 10,000,000 \\
17. & 7,000,000 \\
18. & 4,000,000 \\
19. & 70,000 \\
20. & 20,000 \\
\end{array}
}
\]