1. Вычислите: a) ($$\frac{5}{6} - \frac{1}{3}$$) × 12 = $$\frac{5}{6}$$ × 12 - $$\frac{1}{3}$$ × 12 =

а) ($$\frac{5}{6} - \frac{1}{3}$$) × 12 = $$\frac{5}{6}$$ × 12 - $$\frac{1}{3}$$ × 12 = $$\frac{5 \cdot 12}{6} - \frac{1 \cdot 12}{3} = \frac{60}{6} - \frac{12}{3} = 10 - 4 = 6$$

Ответ: 6