1. |12|-|-3|= 2. |-24/36|×|-6|= 3. |2×4-10|-|1-2×3|×|1+2|= 4. |5|-3× |4/-3| +|-2|²= 5. |-a|×|a|-|-a²|×(-2)=

1.
|12| - |-3|
= 12 - 3
= 9

2.
[tex]| -\frac{24}{36}| [/tex] × |-6|
= [tex] \frac{2}{3} [/tex] × 6
= 4

3.
|2 × 4 - 10| - |1 - 2 × 3| × |1 + 2|
= |8 - 10| - |1 - 6| × |3|
= |-2| - |-5| × 3
= 2 - 5 × 3
= 2 - 15
= -13

4.
|5| - 3 × [tex]| \frac{4}{-3}| [/tex] + |-2|²
= 5 - 3 × [tex] \frac{4}{3} [/tex] + 2²
= 5 - 4 + 4
= 1 + 4
= 5

5.
|-a| × |a| - |-a|² × (-2)
= a × a - a² × (-2)
= a² - a² × (-2)
= a² + 2a²
= 3a²