Find Determinant (2x2) (Level 1)
This math topic focuses on calculating the determinant of 2x2 matrices. Each problem presents a different matrix and asks to find its determinant. There are multiple choice answers provided for each matrix. The knowledge practiced here is fundamental for understanding properties of matrices such as invertibility, which depends on whether the determinant is zero or not. Skills in performing elementary arithmetic operations and understanding matrix composition are reinforced.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
moreMatrices - Find Determinant (2x2) Worksheet
| Math worksheet on 'Matrices - Find Determinant (2x2) (Level 1)'. Part of a broader unit on 'Matrices' Learn online: app.mobius.academy/math/units/matrices/ |
1
![A LaTex expression showing \left[ {\begin{array} {cc} 9 & 4 & 7 \\ 5 & 1 & 0 \end{array} } \right]](https://api.mobius.academy/storedimages/4643898/render)
| Find the determinant of this matrix |
a
| -20 |
b
| 19 |
c
| -1 |
d
| -19 |
e
| not defined |
f
| -23 |
2
![A LaTex expression showing \left[ {\begin{array} {cc} 5 & 5 \\ 0 & 8 \end{array} } \right]](https://api.mobius.academy/storedimages/4643897/render)
| Find the determinant of this matrix |
a
| 48 |
b
| 36 |
c
| 56 |
d
| 60 |
e
| 40 |
f
| 24 |
3
![A LaTex expression showing \left[ {\begin{array} {cc} 8 & 9 \\ 9 & 8 \end{array} } \right]](https://api.mobius.academy/storedimages/4643908/render)
| Find the determinant of this matrix |
a
| -10 |
b
| -20 |
c
| -17 |
d
| -22 |
e
| -12 |
f
| -14 |
4
![A LaTex expression showing \left[ {\begin{array} {cc} 1 & 0 & 7 \\ 2 & 2 & 3 \end{array} } \right]](https://api.mobius.academy/storedimages/4643894/render)
| Find the determinant of this matrix |
a
| -15 |
b
| 8 |
c
| -19 |
d
| -9 |
e
| not defined |
f
| 14 |
5
![A LaTex expression showing \left[ {\begin{array} {cc} 8 & 7 \\ 8 & 9 \end{array} } \right]](https://api.mobius.academy/storedimages/4643907/render)
| Find the determinant of this matrix |
a
| 11 |
b
| 22 |
c
| 13 |
d
| 14 |
e
| 16 |
f
| 10 |
6
![A LaTex expression showing \left[ {\begin{array} {cc} 3 & 9 \\ 9 & 1 \end{array} } \right]](https://api.mobius.academy/storedimages/4643905/render)
| Find the determinant of this matrix |
a
| -47 |
b
| -78 |
c
| -86 |
d
| -94 |
e
| not defined |
f
| -70 |
7
![A LaTex expression showing \left[ {\begin{array} {cc} 1 & 2 & 4 \\ 0 & 9 & 2 \end{array} } \right]](https://api.mobius.academy/storedimages/4643884/render)
| Find the determinant of this matrix |
a
| -10 |
b
| 7 |
c
| 2 |
d
| not defined |
e
| 20 |
f
| 8 |