三、解答题
11. 计算:
(1) $4 - (-3) × 2$；
(2) $(-\dfrac{3}{4})^2 × (-\dfrac{3}{2}) ÷ \dfrac{3}{8}$；
(3) $(-\dfrac{1}{2} - \dfrac{1}{3}) + \dfrac{5}{4} × \dfrac{6}{5}$；
(4) $-0.4 + \dfrac{12}{5} - \dfrac{6}{21} × (-\dfrac{7}{4}) - 0.25$；
(5) $2019 - (-20) - |-19|$；
(6) $-1^{2020} - (-2)^5 ÷ (-4)^2 - 3^3 × \dfrac{1}{9}$；
(7) $-2^2 ÷ \dfrac{9}{4} × \dfrac{2}{3}$；
(8) $(-\dfrac{4}{5}) × (-\dfrac{2}{3}) + (-\dfrac{4}{5}) × (-\dfrac{17}{3})$；
(9) $23 + (-17) + 6 + (-22)$；
(10) $(-1)^{2019} × 5 + (-2)^4 ÷ 4$；
(11) $13 + (-7)^2 - 5 × 2^2$；
(12) $(-2)^3 ÷ 4 - |-5| - 4 × (-2)$；
(13) $0.47 - 4\dfrac{5}{6} - (-1.53) - 1\dfrac{1}{6}$；
(14) $-2^4 - (-5\dfrac{1}{2}) × \dfrac{4}{11} + (-2)^3 ÷ |-3^2 + 1|$；

11. (1)10 (2)$-\dfrac{9}{4}$ (3)$\dfrac{2}{3}$ (4)$2\dfrac{1}{4}$
(5)2 020 (6)-2 (7)$-\dfrac{32}{27}$ (8)$5\dfrac{1}{15}$ (9)-10
(10)-1 (11)42 (12)1 (13)-4 (14)-15