Problem Description:
The task is to determine the
place value of the underlined digit in each 2-digit number. Place value refers to the value of a digit based on its position in the number. In a 2-digit number, there are two positions: the
tens place and the
ones place.
- The
tens place represents how many tens are in the number.
- The
ones place represents how many ones are in the number.
Solution Approach:
1. Identify the underlined digit in each number.
2. Determine whether the underlined digit is in the
tens place or the
ones place.
3. Write the value of the underlined digit based on its position.
Step-by-Step Solution:
#### 1.
10
- Underlined digit:
1
- Position: Tens place
- Value: \( 1 \times 10 = 10 \)
- Answer:
10
#### 2.
71
- Underlined digit:
1
- Position: Ones place
- Value: \( 1 \times 1 = 1 \)
- Answer:
1
#### 3.
36
- Underlined digit:
3
- Position: Tens place
- Value: \( 3 \times 10 = 30 \)
- Answer:
30
#### 4.
28
- Underlined digit:
2
- Position: Tens place
- Value: \( 2 \times 10 = 20 \)
- Answer:
20
#### 5.
12
- Underlined digit:
1
- Position: Tens place
- Value: \( 1 \times 10 = 10 \)
- Answer:
10
#### 6.
15
- Underlined digit:
5
- Position: Ones place
- Value: \( 5 \times 1 = 5 \)
- Answer:
5
#### 7.
54
- Underlined digit:
5
- Position: Tens place
- Value: \( 5 \times 10 = 50 \)
- Answer:
50
#### 8.
61
- Underlined digit:
1
- Position: Ones place
- Value: \( 1 \times 1 = 1 \)
- Answer:
1
#### 9.
84
- Underlined digit:
8
- Position: Tens place
- Value: \( 8 \times 10 = 80 \)
- Answer:
80
#### 10.
93
- Underlined digit:
3
- Position: Ones place
- Value: \( 3 \times 1 = 3 \)
- Answer:
3
Final Answers:
\[
\begin{aligned}
&1. \quad 10 \\
&2. \quad 1 \\
&3. \quad 30 \\
&4. \quad 20 \\
&5. \quad 10 \\
&6. \quad 5 \\
&7. \quad 50 \\
&8. \quad 1 \\
&9. \quad 80 \\
&10. \quad 3 \\
\end{aligned}
\]
Boxed Final Answer:
\[
\boxed{10, 1, 30, 20, 10, 5, 50, 1, 80, 3}
\]
Parent Tip: Review the logic above to help your child master the concept of what is the value of the underlined digit worksheet.
