1 Вычислите 5-2(+2) Затление нотностью решение и ответи 2. Вычислите 20 +84-(-14) Заплатите по твостью резнечне и отест 3. Вычислите 6 +1-(-5) Калимаилое ноткостью решение и ответ 4 Вычислите 21 (2) Запалене потностью решение в отели 5. Вычислите 3:1-14(+13) Заланилие полностью решение и отеет. 6. Вычислите 3:18 +2층·(-26). Запанове полностью решение в очесть - Вычислите: 6 - (7-11) Зондание полностью решение и ответ. 8. Вычислите 21-(9-6):+. Запашние полностью решение и ответ. • Вычислите 21-(6-5): Залазове ночностью решение и ответ 10. Вычислите (26-58) 15 11. Вычислите: (35-53) 25. 12. Вычислите (3.3-3.9) 45. 13. Вычислите (2-34) 54 14. Вычислите (545) 38 15. Вычислите (-9-17) 12 16. Вычислите (2846) 12 17. Вычислите (4.8 9.4) 25 18. Вычислите (12-84) 4.5. 19. Вычислите 59 (1-42) 20. Вычислите: 17 (7.6-8.1).

Ответ: Ниже

Решим все примеры по порядку:

1. 5 - 2⋅(1 + \(\frac{1}{4}\)) = 5 - 2⋅\(\frac{5}{4}\) = 5 - \(\frac{10}{4}\) = \(\frac{20}{4}\) - \(\frac{10}{4}\) = \(\frac{10}{4}\) = 2\(\frac{2}{4}\) = 2\(\frac{1}{2}\)

2. 2\(\frac{2}{5}\) + 8\(\frac{1}{3}\) - (-1\(\frac{1}{5}\)) = \(\frac{12}{5}\) + \(\frac{25}{3}\) + \(\frac{6}{5}\) = \(\frac{36}{15}\) + \(\frac{125}{15}\) + \(\frac{18}{15}\) = \(\frac{179}{15}\) = 11\(\frac{14}{15}\)

3. 6\(\frac{1}{4}\) + 1\(\frac{1}{3}\) ⋅ (-5\(\frac{1}{4}\)) = \(\frac{25}{4}\) + \(\frac{4}{3}\) ⋅ ( - \(\frac{21}{4}\)) = \(\frac{25}{4}\) - \(\frac{4}{3}\) ⋅ \(\frac{21}{4}\) = \(\frac{25}{4}\) - \(\frac{84}{12}\) = \(\frac{25}{4}\) - 7 = \(\frac{25}{4}\) - \(\frac{28}{4}\) = -\(\frac{3}{4}\)

4. 2 : \(\frac{1}{2}\) - 1\(\frac{1}{2}\) ⋅ (+2\(\frac{1}{3}\)) = 4 - \(\frac{3}{2}\) ⋅ \(\frac{7}{3}\) = 4 - \(\frac{21}{6}\) = \(\frac{24}{6}\) - \(\frac{21}{6}\) = \(\frac{3}{6}\) = \(\frac{1}{2}\)

5. 3 : 1\(\frac{1}{5}\) - 1\(\frac{1}{4}\) ⋅ (+1\(\frac{1}{3}\)) = 3 : \(\frac{6}{5}\) - \(\frac{5}{4}\) ⋅ \(\frac{4}{3}\) = \(\frac{3}{1}\) ⋅ \(\frac{5}{6}\) - \(\frac{5}{3}\) = \(\frac{15}{6}\) - \(\frac{5}{3}\) = \(\frac{15}{6}\) - \(\frac{10}{6}\) = \(\frac{5}{6}\)

6. 3 : 1\(\frac{3}{8}\) + 2\(\frac{1}{5}\) ⋅ (-2\(\frac{2}{3}\)) = 3 : \(\frac{11}{8}\) + \(\frac{11}{5}\) ⋅ ( - \(\frac{8}{3}\)) = \(\frac{3}{1}\) ⋅ \(\frac{8}{11}\) - \(\frac{88}{15}\) = \(\frac{24}{11}\) - \(\frac{88}{15}\) = \(\frac{360}{165}\) - \(\frac{968}{165}\) = - \(\frac{608}{165}\) = -3\(\frac{113}{165}\)

7. 6\(\frac{1}{3}\) - (7 - 1\(\frac{1}{2}\)) : \(\frac{3}{4}\) + \(\frac{1}{2}\) = \(\frac{19}{3}\) - (\(\frac{14}{2}\) - \(\frac{3}{2}\)) : \(\frac{3}{4}\) + \(\frac{1}{2}\) = \(\frac{19}{3}\) - \(\frac{11}{2}\) ⋅ \(\frac{4}{3}\) + \(\frac{1}{2}\) = \(\frac{19}{3}\) - \(\frac{44}{6}\) + \(\frac{1}{2}\) = \(\frac{38}{6}\) - \(\frac{44}{6}\) + \(\frac{3}{6}\) = -\(\frac{3}{6}\) = -\(\frac{1}{2}\)

8. 2\(\frac{1}{4}\) - (9 - 6\(\frac{2}{3}\)) : \(\frac{1}{5}\) + \(\frac{3}{8}\) = \(\frac{9}{4}\) - (\(\frac{27}{3}\) - \(\frac{20}{3}\)) : \(\frac{1}{5}\) + \(\frac{3}{8}\) = \(\frac{9}{4}\) - \(\frac{7}{3}\) ⋅ \(\frac{5}{1}\) + \(\frac{3}{8}\) = \(\frac{9}{4}\) - \(\frac{35}{3}\) + \(\frac{3}{8}\) = \(\frac{54}{24}\) - \(\frac{280}{24}\) + \(\frac{9}{24}\) = -\(\frac{217}{24}\) = -9\(\frac{1}{24}\)

9. 2\(\frac{1}{2}\) - (6 - 5\(\frac{1}{4}\)) : \(\frac{1}{10}\) = \(\frac{5}{2}\) - (\(\frac{24}{4}\) - \(\frac{21}{4}\)) : \(\frac{1}{10}\) = \(\frac{5}{2}\) - \(\frac{3}{4}\) ⋅ \(\frac{10}{1}\) = \(\frac{5}{2}\) - \(\frac{30}{4}\) = \(\frac{10}{4}\) - \(\frac{30}{4}\) = -\(\frac{20}{4}\) = -5

10. (2.6 - 5.8) ⋅ 1.5 = -3.2 ⋅ 1.5 = -4.8

11. (3.5 - 5.3) ⋅ 2.5 = -1.8 ⋅ 2.5 = -4.5

12. (3.3 - 3.9) ⋅ 4.5 = -0.6 ⋅ 4.5 = -2.7

13. (−2 - 3.4) ⋅ 5.4 = -5.4 ⋅ 5.4 = -29.16

14. (−5 - 4.5) ⋅ 3.8 = -9.5 ⋅ 3.8 = -36.1

15. (-9 - 1.7) ⋅ 1.2 = -10.7 ⋅ 1.2 = -12.84

16. (2.8 - 4.6) ⋅ 1.2 = -1.8 ⋅ 1.2 = -2.16

17. (4.8 - 9.4) ⋅ 2.5 = -4.6 ⋅ 2.5 = -11.5

18. (1.2 - 8.4) ⋅ 4.5 = -7.2 ⋅ 4.5 = -32.4

19. 50 ⋅ (1.7 - 4.2) = 50 ⋅ (-2.5) = -125

20. 1.7 ⋅ (7.6 - 8.1) = 1.7 ⋅ (-0.5) = -0.85

Ответ: Ниже