https://www.khanacademy.org/math/precalculus/x9e81a4f98389efdf:matrices/x9e81a4f98389efdf:adding-and-subtracting-matrices/v/matrix-addition-and-subtraction-1 2026-02-27T05:20:50.375487085Z Adding matrices (with -1 scalar also) Sal defines what it means to add or subtract matrices. He shows a few examples and discusses some important properties of matrix addition and subtraction. Sal Khan video https://cdn.kastatic.org/googleusercontent/zmei0Tqh5SP7PF4-vY6o0abFVM_Rimpu8Tyr7nBA8TsnSXOHottPTvfY5yj1PiqgAt5ePmVqatmI2Nvzv9d-I7Ve Adding matrices (with -1 scalar also) Sal defines what it means to add or subtract matrices. He shows a few examples and discusses some important properties of matrix addition and subtraction. https://cdn.kastatic.org/ka-youtube-converted/WR9qCSXJlyY.mp4/WR9qCSXJlyY.mp4 335 Addition of matrices https://www.khanacademy.org/math/precalculus/x9e81a4f98389efdf:matrices/x9e81a4f98389efdf:adding-and-subtracting-matrices/e/matrix_addition_and_subtraction 2026-03-24T23:41:07.080866137Z Add & subtract matrices Practice your understanding of the process of adding or subtracting two matrices. Tomer Gal exercise https://www.khanacademy.org/math/ka-math-class-12/x6f66cbee9a2f805b:matrices-ncert-new/x6f66cbee9a2f805b:addition-of-matrices/e/properties-of-matrix-addition 2025-08-08T02:45:51.78671331Z Properties of Matrix Addition Properties of Matrix Addition Ashish Gupta exercise https://www.khanacademy.org/math/ka-math-class-12/x6f66cbee9a2f805b:matrices-ncert-new/x6f66cbee9a2f805b:addition-of-matrices/v/properties-of-matrix-addition 2025-05-22T13:12:03.767544849Z Properties of matrix addition In this video, we learn about the properties of matrix addition. We first understand when addition works and look at what these properties mean. We then dive deeper to understand where the properties of addition of real numbers help out with properties of matrix addition. We look at Commutative property of addition, Associative property of addition, Additive identity for addition, Existence of additive inverse, and Closure property of addition. We finally solve a conceptual problem to test our understanding. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Properties of matrix addition In this video, we learn about the properties of matrix addition. We first understand when addition works and look at what these properties mean. We then dive deeper to understand where the properties of addition of real numbers help out with properties of matrix addition. We look at Commutative property of addition, Associative property of addition, Additive identity for addition, Existence of additive inverse, and Closure property of addition. We finally solve a conceptual problem to test our understanding. https://cdn.kastatic.org/ka-youtube-converted/Pz6OPg6dqYk.mp4/Pz6OPg6dqYk.mp4 654 Addition of matrices https://www.khanacademy.org/math/precalculus/x9e81a4f98389efdf:matrices/x9e81a4f98389efdf:properties-of-matrix-addition-and-scalar-multiplication/a/properties-of-matrix-addition 2024-09-24T05:53:21.295694303Z Properties of matrix addition Learn about the properties of matrix addition (like the commutative property) and how they relate to real number addition. article