Given two matrices A and B. A = \begin{bmatrix} 2 & 3 \\ 4 & 5 \\ 6 & 7 \end{bmatrix} and B = \begin{bmatrix} 1 & 2 \\ 3 & 4 \\ 5 & 6 \end{bmatrix}. Calculate A - B.

Step 1 ：Step 1: Write down the matrices A and B. A = \begin{bmatrix} 2 & 3 \\ 4 & 5 \\ 6 & 7 \end{bmatrix} and B = \begin{bmatrix} 1 & 2 \\ 3 & 4 \\ 5 & 6 \end{bmatrix}

Step 2 ：Step 2: Perform the subtraction operation element by element. (A - B) = \begin{bmatrix} 2-1 & 3-2 \\ 4-3 & 5-4 \\ 6-5 & 7-6 \end{bmatrix}

Step 3 ：Step 3: Simplify the result. (A - B) = \begin{bmatrix} 1 & 1 \\ 1 & 1 \\ 1 & 1 \end{bmatrix}