Find the missing factor. \( \begin{array}{llll}\text { 9. } \times 400=3.200 & \text { 10. } 5 \times 100-500 & 11\end{array} \)

To find the missing factor in each equation, we can solve them one by one. **For equation 9:** \[ 9 \times 400 = 3,200 \] To verify this, we can calculate: \[ 9 \times 400 = 3,600 \] This means that the equation is incorrect as stated. The correct multiplication should yield: \[ 8 \times 400 = 3,200 \] So, the missing factor is **8**. **For equation 10:** \[ 5 \times 100 - 500 \] First, we calculate \(5 \times 100\): \[ 5 \times 100 = 500 \] Now, substituting back into the equation: \[ 500 - 500 = 0 \] So, the result of this equation is **0**. **For equation 11:** Since there is no equation provided for 11, we cannot determine a missing factor. In summary: - The missing factor for equation 9 is **8**. - The result for equation 10 is **0**. - No information is available for equation 11.