Matrix Addition/Subtraction

Calculator Allowed

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Determine if you are finding the sum of an identity or opposite matrix then solve.

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Find Y - W + Z

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• Does Not Exist

Find Y - V

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• Does Not Exist

Find Y - (W + Z)

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• Does Not Exist

Find (W + Y) - V

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• Does Not Exist

Which matrix shows the inventory of sweatshirts remaining after both A-Day & B-Day sales?

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Algebra High cheerleaders are selling sweatshirts for the Football Team. The inventory of sweatshirts as well as sweatshirts sold on A-Days and B-Days are given in the matrices. Which matrix shows the total of sweatshirts sold in each category, color/size, by the cheerleaders?

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Which matrix shows the inventory of sweatshirts remaining after the A-Day sales?

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Which matrix shows the inventory of sweatshirts remaining after the B-Day sales?

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