Odpowiedź:
[tex] | - 2 \frac{1}{2} | + |1 \frac{1}{2} | = 2 \frac{1}{2} + 1 \frac{1}{2} = 4[/tex]
[tex] | \sqrt{2 } - 3| = - \sqrt{2} + 3 = 3 - \sqrt{2} [/tex]