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**Question 1:** **Subtract the following matrices.**

**Answer: **

**Explanation: **Combine the corresponding entries.

**Question 2:** **Write the dimension for the following matrix.**

**Answer: **

**Explan**ati**on: **Identify the number of rows and columns.

**Question 3:** **Identify the element from the following matrix.**

**Answer: **

**Explanation: **Locate the given row and column.

**Question 4:** **Identify the element from the following matrix.**

**Answer: **

**Explanation: **Locate the given row and column.

**Question 5:** **Write the augmented matrix for the following equations.**

**Answer: **

**Explanation: **Represent each equation by each row.

**Question 6:** **Perform the operation to the following matrix.**

**Answer: **

**Explanation: **Multiply the first row by 2.

**Question 7:** **Perform the operation to the following matrix.**

**Answer: **

**Explan**ati**on: **Interchange the elements of row and row .

**Question 8:** **Add the following matrices.**

**Answer: **

**Explanation: **Combine the corresponding entries.

**Question 9:** **Perform the following operation.**

**Answer: **

**Explanation: **Multiply each element by 5.

**Question 10:** **Multiply the following matrices.**

**Answer: **

**Explanation: **Write the vector dot product of the row of the first matrix and the column of the second matrix.