1.计算：
(1) $7×(-3\dfrac{1}{6})-3\dfrac{1}{6}×(-9)+(-\dfrac{19}{6})÷(-\dfrac{1}{4})$；
(2) $13\dfrac{8}{13}÷\dfrac{1}{6}+(-7\dfrac{2}{13})÷\dfrac{1}{6}+(-36\dfrac{6}{13})×6$；
(3) $(-2)×(\dfrac{4}{7}-1\dfrac{3}{8}+\dfrac{3}{14}-1\dfrac{1}{4})÷\dfrac{1}{56}$；
(4) $(\dfrac{1}{2}+\dfrac{5}{6}-\dfrac{7}{12})÷(-\dfrac{1}{24})-15×0.7-15×1.3$；
(5) $[4-(\dfrac{3}{8}-\dfrac{3}{4})×2]÷6\dfrac{1}{3}$；
(6) $(\dfrac{3}{35}-\dfrac{5}{14}-\dfrac{2}{5})×(70÷\dfrac{7}{4}-70÷\dfrac{7}{2}+70÷\dfrac{7}{5})$。

(1) $19$
(2) $-180$
(3) $206$
(4) $-48$
(5) $\frac{3}{4}$
(6) $-47$

2.计算: $\{15 - \dfrac{4}{11} × [ (-24) × ( \dfrac{5}{4} - \dfrac{3}{8} + \dfrac{5}{24} ) - 4 ] \} × ( -\dfrac{11}{15} )$

$-19$