Numeric evaluation chains

Calculate, without using a calculator: $(\tfrac{1}{2}+\tfrac{5}{12}\times\tfrac{3}{4})\times(-\tfrac{2}{3})$

Calculate, without using a calculator: $3-3^{3}\div3^{2}$

Calculate, without using a calculator: $3\times(30+(-10)-(9+18))$

Calculate, without using a calculator: $12\div(-\tfrac{5}{8})\div(-17\times\tfrac{4}{9}\div2)$

Calculate, without using a calculator: $\tfrac{3}{4}-(\tfrac{1}{4}+\tfrac{1}{2}\div23)$

Calculate, without using a calculator: $-24-3^{2}\times3^{3}$

Calculate, without using a calculator: $(-\tfrac{1}{5}-\tfrac{5}{7}-(-\tfrac{7}{10}))\div\tfrac{11}{12}$

Calculate, without using a calculator: $8^{3}\div8^{2}+29$

Calculate, without using a calculator: $\tfrac{1}{8}\div(-\tfrac{1}{2}\times\tfrac{1}{2})-(\tfrac{5}{12}+(-\tfrac{5}{6})+\tfrac{2}{3})$

Calculate, without using a calculator: −9,38 − (15 − (3³ ÷ 27 + √64 − 16))

Calculate, without using a calculator: $(2+11)\times(4-(-4))\times(-10)$

Calculate, without using a calculator: (15% of 180 + 10% of 80 + 40% of 40) $\times(-\tfrac{5}{6})-(-4)$