1 апреля, Классная работа 1) 234-6) +27.(-6) 17-6-18.9-17.3 -+4,8-69 0,9-(-0,4)-0,7 (-0,4) 11 1-13-141.18 PolyGlide Boards

Ответ: Решение на изображении

Математика, 6 класс

Решение примеров, записанных на доске:

1. 234 - 6 + 27 ⋅ (-6) = 228 - 162 = 66

2. -17 ⋅ 6 - \(\frac{1}{16}\) ⋅ 9 - \(\frac{1}{16}\) ⋅ 3 = -102 - \(\frac{9}{16}\) - \(\frac{3}{16}\) = -102 - \(\frac{12}{16}\) = -102 - \(\frac{3}{4}\) = -102.75

3. -\(\frac{4}{7}\) + 4.8 - 6.7 = -0.57 + 4.8 - 6.7 = -2.47

4. 0.9 - (-0.4) - 0.7 ⋅ (-0.4) = 0.9 + 0.4 + 0.28 = 1.58

5. -\(\frac{8}{11}\) ⋅ \(\frac{5}{6}\) + \(\frac{3}{6}\) ⋅ \(\frac{11}{1}\) = -\(\frac{40}{66}\) + \(\frac{33}{6}\) = -\(\frac{20}{33}\) + \(\frac{11}{2}\) = \(\frac{-40+363}{66}\) = \(\frac{323}{66}\) = 4.89

6. (-1 - \(\frac{1}{3}\) - \(\frac{1}{9}\)) ⋅ 18 = (-\(\frac{9}{9}\) - \(\frac{3}{9}\) - \(\frac{1}{9}\)) ⋅ 18 = -\(\frac{13}{9}\) ⋅ 18 = -26

Ответ: Решение на изображении