EM-2098

Adding and subtracting matrices

E Math · Secondary 4 · Hard · Adding and subtracting matrices

1. $\begin{pmatrix} 12 & 8 \\9 & 9 \end{pmatrix}$
2. $\begin{pmatrix} 6 & 4 \\1 & 7 \end{pmatrix}$
3. $\begin{pmatrix} 12 & 8 \\20 & 15 \end{pmatrix}$
4. $\begin{pmatrix} 9 & 6 \\5 & 8 \end{pmatrix}$

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