Adding two matrices together is relatively easy. For every position in the resulting matrix,
add the value of that position on the first matrix to the value of that position on the second
matrix. The general form of a 3 by 3 matrix looks like this:



Note that a00 is added to b00, a01 is added to b01, et cetera. To come with a concrete example:



In this exercise, your job is to fill the right-most matrix. Look at the highlighted position
on the matrix and click on which one of the three possible solutions belongs there. The faster
you do this and the less mistakes you make, the higher your score will become.

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