1.
[tex]( - 2 \ \ \frac{1}{2}) \: \div (0.25)[/tex]
2.
[tex]3 \div ( - 2 \ \frac{1}{4} )[/tex]
3.
[tex](3 \ \frac{2}{5} ) \times ( - 2 \times \frac{1}{4} )[/tex]
4.
[tex] - 2.7 \times ( - 3 \times \frac{1}{2} )[/tex]
Plsss pomóżcie ​