Math worksheet with missing number equations and answer key.

The task involves solving simple arithmetic equations by supplying the missing values. Each equation is structured such that one of the operands or the result is missing, and you need to determine the correct value to make the equation true.

Step-by-Step Solution:

#### 1. First Row:
- Equation: \( 35 \div \_\_ = 7 \)
- To solve for the missing value, we use the formula:
\[
\text{Dividend} \div \text{Divisor} = \text{Quotient}
\]
Here, \( 35 \div x = 7 \). Solving for \( x \):
\[
x = \frac{35}{7} = 5
\]
So, the missing value is \( 5 \).

#### 2. Second Row:
- Equation: \( 8 \times \_\_ = 72 \)
- To solve for the missing value, we use the formula:
\[
\text{Factor} \times \text{Factor} = \text{Product}
\]
Here, \( 8 \times x = 72 \). Solving for \( x \):
\[
x = \frac{72}{8} = 9
\]
So, the missing value is \( 9 \).

#### 3. Third Row:
- Equation: \( 10 + \_\_ = 5 \)
- To solve for the missing value, we use the formula:
\[
\text{Addend} + \text{Addend} = \text{Sum}
\]
Here, \( 10 + x = 5 \). Solving for \( x \):
\[
x = 5 - 10 = -5
\]
So, the missing value is \( -5 \).

#### 4. Fourth Row:
- Equation: \( 48 \div \_\_ = 8 \)
- To solve for the missing value, we use the formula:
\[
\text{Dividend} \div \text{Divisor} = \text{Quotient}
\]
Here, \( 48 \div x = 8 \). Solving for \( x \):
\[
x = \frac{48}{8} = 6
\]
So, the missing value is \( 6 \).

#### 5. Fifth Row:
- Equation: \( \_\_ - 6 = 0 \)
- To solve for the missing value, we use the formula:
\[
\text{Minuend} - \text{Subtrahend} = \text{Difference}
\]
Here, \( x - 6 = 0 \). Solving for \( x \):
\[
x = 0 + 6 = 6
\]
So, the missing value is \( 6 \).

#### 6. Sixth Row:
- Equation: \( 3 \times \_\_ = 9 \)
- To solve for the missing value, we use the formula:
\[
\text{Factor} \times \text{Factor} = \text{Product}
\]
Here, \( 3 \times x = 9 \). Solving for \( x \):
\[
x = \frac{9}{3} = 3
\]
So, the missing value is \( 3 \).

#### 7. Seventh Row:
- Equation: \( \_\_ - 4 = 9 \)
- To solve for the missing value, we use the formula:
\[
\text{Minuend} - \text{Subtrahend} = \text{Difference}
\]
Here, \( x - 4 = 9 \). Solving for \( x \):
\[
x = 9 + 4 = 13
\]
So, the missing value is \( 13 \).

#### 8. Eighth Row:
- Equation: \( 20 \div \_\_ = 5 \)
- To solve for the missing value, we use the formula:
\[
\text{Dividend} \div \text{Divisor} = \text{Quotient}
\]
Here, \( 20 \div x = 5 \). Solving for \( x \):
\[
x = \frac{20}{5} = 4
\]
So, the missing value is \( 4 \).

#### 9. Ninth Row:
- Equation: \( 15 - \_\_ = 11 \)
- To solve for the missing value, we use the formula:
\[
\text{Minuend} - \text{Subtrahend} = \text{Difference}
\]
Here, \( 15 - x = 11 \). Solving for \( x \):
\[
x = 15 - 11 = 4
\]
So, the missing value is \( 4 \).

#### 10. Tenth Row:
- Equation: \( 3 + \_\_ = 6 \)
- To solve for the missing value, we use the formula:
\[
\text{Addend} + \text{Addend} = \text{Sum}
\]
Here, \( 3 + x = 6 \). Solving for \( x \):
\[
x = 6 - 3 = 3
\]
So, the missing value is \( 3 \).

---

Final Answer:

\[
\boxed{5, 9, -5, 6, 6, 3, 13, 4, 4, 3}
\]