1. Вычислить. 1) $$-3\frac{1}{8} \cdot 16$$ 2) $$-2,84 - 5,49$$ 3) $$2 - (-6) - 8$$ 4) $$-2,34 : 1,8$$ 5) $$3\frac{3}{4} - 5\frac{5}{6}$$

1) $$-3\frac{1}{8} \cdot 16 = -\frac{25}{8} \cdot 16 = -25 \cdot 2 = -50$$ 2) $$-2,84 - 5,49 = -8,33$$ 3) $$2 - (-6) - 8 = 2 + 6 - 8 = 8 - 8 = 0$$ 4) $$-2,34 : 1,8 = -1,3$$ 5) $$3\frac{3}{4} - 5\frac{5}{6} = \frac{15}{4} - \frac{35}{6} = \frac{45 - 70}{12} = -\frac{25}{12} = -2\frac{1}{12}$$