Вычислите: 1) $$-1\frac{1}{5} \cdot (-25)$$ 2) $$-2,85 - 8,98$$ 3) $$-6 - (-5) + 4$$ 4) $$-2,46 : \frac{3}{50}$$ 5) $$2\frac{1}{6} - 4\frac{5}{8}$$

1) $$-1\frac{1}{5} \cdot (-25) = -\frac{6}{5} \cdot (-25) = \frac{6 \cdot 25}{5} = 6 \cdot 5 = 30$$ Ответ: 30 2) $$-2,85 - 8,98 = - (2,85 + 8,98) = -11,83$$ Ответ: -11,83 3) $$-6 - (-5) + 4 = -6 + 5 + 4 = -1 + 4 = 3$$ Ответ: 3 4) $$-2,46 : \frac{3}{50} = -2,46 \cdot \frac{50}{3} = -\frac{246}{100} \cdot \frac{50}{3} = -\frac{246}{2} \cdot \frac{1}{3} = -123 \cdot \frac{1}{3} = -41$$ Ответ: -41 5) $$2\frac{1}{6} - 4\frac{5}{8} = \frac{13}{6} - \frac{37}{8} = \frac{13 \cdot 4}{6 \cdot 4} - \frac{37 \cdot 3}{8 \cdot 3} = \frac{52}{24} - \frac{111}{24} = -\frac{59}{24} = -2\frac{11}{24}$$ Ответ: $$-2\frac{11}{24}$$