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Matrices — Easy Worksheet 2
Grade 12 · Whoobee Name: ____________________ Date: __________
Solve each problem. When the answer is a matrix, write one number in each box.
How to solve
To add matrices, add the numbers in the same positions. For the determinant of
| a | b | ||
| c | d |
Example
Add:
| 1 | -2 | ||
| 1 | -2 |
| -1 | -2 | ||
| -2 | -1 |
Answer:
| 0 | -4 | ||
| -1 | -3 |
| 5 | 0 | ||
| -5 | -1 |
| 2 | -4 | ||
| 5 | -1 |
Not quite. The answer is
💡 Add the entries in matching positions: top left 5 + 2 = 7, top right 0 + (-4) = -4, bottom left -5 + 5 = 0, bottom right -1 + (-1) = -2. The sum is
| 7 | -4 | ||
| 0 | -2 |
✓ Correct!
Not quite. The answer is
💡 Add the entries in matching positions: top left 5 + 2 = 7, top right 0 + (-4) = -4, bottom left -5 + 5 = 0, bottom right -1 + (-1) = -2. The sum is
| 7 | -4 | ||
| 0 | -2 |
💡 How to solve: Matrices
To add matrices, add the numbers in the same positions. For the determinant of
| a | b | ||
| c | d |
Try a similar one
Add:
| 2 | 5 | ||
| 5 | 4 |
| -3 | -5 | ||
| 5 | -3 |
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
| 3 | -2 | ||
| -4 | -3 |
Not quite. The answer is
💡 For
| a | b | ||
| c | d |
✓ Correct!
Not quite. The answer is
💡 For
| a | b | ||
| c | d |
💡 How to solve: Matrices
To add matrices, add the numbers in the same positions. For the determinant of
| a | b | ||
| c | d |
Try a similar one
Add:
| 4 | -5 | ||
| -3 | -3 |
| 2 | 2 | ||
| -2 | -2 |
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
| 2 | -5 | ||
| -5 | 0 |
| 5 | 3 | ||
| 4 | 2 |
Not quite. The answer is
💡 Add the entries in matching positions: top left 2 + 5 = 7, top right -5 + 3 = -2, bottom left -5 + 4 = -1, bottom right 0 + 2 = 2. The sum is
| 7 | -2 | ||
| -1 | 2 |
✓ Correct!
Not quite. The answer is
💡 Add the entries in matching positions: top left 2 + 5 = 7, top right -5 + 3 = -2, bottom left -5 + 4 = -1, bottom right 0 + 2 = 2. The sum is
| 7 | -2 | ||
| -1 | 2 |
💡 How to solve: Matrices
To add matrices, add the numbers in the same positions. For the determinant of
| a | b | ||
| c | d |
Try a similar one
Add:
| 0 | 0 | ||
| 5 | -4 |
| -1 | 2 | ||
| 1 | 5 |
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
| 1 | -3 | ||
| -3 | -3 |
Not quite. The answer is
💡 For
| a | b | ||
| c | d |
✓ Correct!
Not quite. The answer is
💡 For
| a | b | ||
| c | d |
💡 How to solve: Matrices
To add matrices, add the numbers in the same positions. For the determinant of
| a | b | ||
| c | d |
Try a similar one
Add:
| -4 | 1 | ||
| 0 | 2 |
| 2 | -1 | ||
| 1 | 2 |
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
| 4 | -3 | ||
| -1 | -5 |
| -1 | 4 | ||
| -3 | 3 |
Not quite. The answer is
💡 Add the entries in matching positions: top left 4 + (-1) = 3, top right -3 + 4 = 1, bottom left -1 + (-3) = -4, bottom right -5 + 3 = -2. The sum is
| 3 | 1 | ||
| -4 | -2 |
✓ Correct!
Not quite. The answer is
💡 Add the entries in matching positions: top left 4 + (-1) = 3, top right -3 + 4 = 1, bottom left -1 + (-3) = -4, bottom right -5 + 3 = -2. The sum is
| 3 | 1 | ||
| -4 | -2 |
💡 How to solve: Matrices
To add matrices, add the numbers in the same positions. For the determinant of
| a | b | ||
| c | d |
Try a similar one
Add:
| 5 | -1 | ||
| 4 | -3 |
| -3 | 0 | ||
| -2 | 0 |
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
| -5 | 3 | ||
| 4 | 1 |
Not quite. The answer is
💡 For
| a | b | ||
| c | d |
✓ Correct!
Not quite. The answer is
💡 For
| a | b | ||
| c | d |
💡 How to solve: Matrices
To add matrices, add the numbers in the same positions. For the determinant of
| a | b | ||
| c | d |
Try a similar one
Add:
| 0 | 3 | ||
| 0 | -3 |
| 0 | -5 | ||
| 1 | 4 |
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
| -2 | -5 | ||
| -1 | 3 |
| -2 | 1 | ||
| 1 | -4 |
Not quite. The answer is
💡 Add the entries in matching positions: top left -2 + (-2) = -4, top right -5 + 1 = -4, bottom left -1 + 1 = 0, bottom right 3 + (-4) = -1. The sum is
| -4 | -4 | ||
| 0 | -1 |
✓ Correct!
Not quite. The answer is
💡 Add the entries in matching positions: top left -2 + (-2) = -4, top right -5 + 1 = -4, bottom left -1 + 1 = 0, bottom right 3 + (-4) = -1. The sum is
| -4 | -4 | ||
| 0 | -1 |
💡 How to solve: Matrices
To add matrices, add the numbers in the same positions. For the determinant of
| a | b | ||
| c | d |
Try a similar one
Add:
| 2 | 5 | ||
| 3 | 1 |
| -5 | 1 | ||
| 4 | -3 |
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
| -5 | 2 | ||
| 3 | 4 |
Not quite. The answer is
💡 For
| a | b | ||
| c | d |
✓ Correct!
Not quite. The answer is
💡 For
| a | b | ||
| c | d |
💡 How to solve: Matrices
To add matrices, add the numbers in the same positions. For the determinant of
| a | b | ||
| c | d |
Try a similar one
Add:
| -2 | 5 | ||
| 1 | -5 |
| 2 | 1 | ||
| -2 | 0 |
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
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Matrices — Easy Worksheet 2
Solve each problem. When the answer is a matrix, write one number in each box.