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### Theory

 1 Operations on matrices 2 Multiplication of Matrix by a Scalar 3 Properties of Matrix I 4 Properties of Matrix II 5 Additive identity and additive inverse

### Exercises

 1 Addition on 2×2 matrices Difficulty: easy 2 2 Addition on 3×3 matrices Difficulty: easy 2 3 Additive Inverse matrix Difficulty: easy 1 4 Find the matrix 'B' Difficulty: easy 2 5 Maltiplication by a Scalar: 3×3 matrix Difficulty: medium 3 6 Exam and marks: Addition on 4×4 matrices Difficulty: medium 3 7 Scalar multiplication: Find the value of the matrix Difficulty: medium 4 8 Check the associative property on 3 × 2 matrix Difficulty: medium 7 9 Commutative property of matrices Difficulty: medium 5.6 10 Find the unknown values on 2 × 2 matrices Difficulty: medium 4 11 Associative property Difficulty: hard 7 12 Determine the value of matrices Difficulty: hard 4 13 Calculate the value of variables x, y and z Difficulty: hard 4 14 Verify the distributive property Difficulty: hard 6

### Tests

 1 Training test I Difficulty: medium 7 2 Training test II Difficulty: medium 7

### Teacher manual

 1 Methodical recommendation