Ответ: смотри решение ниже
| 6 вариант | 7 вариант | 8 вариант | 9 вариант |
|---|---|---|---|
| 1000 + 67 = 1067 | 1372 + 500 = 1872 | 42 + 70 = 112 | 805 + 26 = 831 |
| 400 – 34 = 366 | 150 – 162 = -12 | 4000 – 29 = 3971 | 1000 – 123 = 877 |
| 8100 : 9 = 900 | 184 ⋅ 0 = 0 | 0 : 37 = 0 | 19 ⋅ 90 = 1710 |
| 2,4 ⋅ 0,05 = 0,12 | 3,2 : 20 = 0,16 | 7,2 : 1,2 = 6 | 0,72 : 2,4 = 0,3 |
| 1,3 + 4,14 = 5,44 | 6,2 + 4,09 = 10,29 | 2,82 + 3,1 = 5,92 | 5,47 + 38 = 43,47 |
| 50,7 ⋅ 0,01 = 0,507 | 6,21 : 0,01 = 621 | 0,24 ⋅ 0,01 = 0,0024 | 20,5 : 0,01 = 2050 |
| 6\(\frac{5}{9}\) + 3\(\frac{4}{9}\) = 9\(\frac{9}{9}\) = 10 | 9\(\frac{1}{9}\) + 7\(\frac{2}{9}\) = 16\(\frac{3}{9}\) = 16\(\frac{1}{3}\) | 20\(\frac{7}{8}\) - 8\(\frac{3}{8}\) = 12\(\frac{4}{8}\) = 12\(\frac{1}{2}\) | 3\(\frac{3}{8}\) + 6\(\frac{7}{8}\) = 9\(\frac{10}{8}\) = 10\(\frac{2}{8}\) = 10\(\frac{1}{4}\) |
| \(\frac{1}{2}\) + \(\frac{2}{9}\) = \(\frac{9}{18}\) + \(\frac{4}{18}\) = \(\frac{13}{18}\) | \(\frac{9}{15}\) - \(\frac{3}{5}\) = \(\frac{9}{15}\) - \(\frac{9}{15}\) = 0 | \(\frac{5}{14}\) + \(\frac{6}{7}\) = \(\frac{5}{14}\) + \(\frac{12}{14}\) = \(\frac{17}{14}\) = 1\(\frac{3}{14}\) | \(\frac{2}{9}\) + \(\frac{1}{3}\) = \(\frac{2}{9}\) + \(\frac{3}{9}\) = \(\frac{5}{9}\) |
| 6 : \(\frac{3}{11}\) = \(\frac{6}{1}\) ⋅ \(\frac{11}{3}\) = \(\frac{2}{1}\) ⋅ \(\frac{11}{1}\) = 22 | \(\frac{9}{22}\) : 6 = \(\frac{9}{22}\) ⋅ \(\frac{1}{6}\) = \(\frac{3}{22}\) ⋅ \(\frac{1}{2}\) = \(\frac{3}{44}\) | 2\(\frac{1}{3}\) ⋅ \(\frac{3}{7}\) = \(\frac{7}{3}\) ⋅ \(\frac{3}{7}\) = 1 | 1\(\frac{1}{6}\) : \(\frac{7}{18}\) = \(\frac{7}{6}\) ⋅ \(\frac{18}{7}\) = \(\frac{1}{1}\) ⋅ \(\frac{3}{1}\) = 3 |
| \(\frac{1}{6}\) + 0,4 = \(\frac{1}{6}\) + \(\frac{4}{10}\) = \(\frac{1}{6}\) + \(\frac{2}{5}\) = \(\frac{5}{30}\) + \(\frac{12}{30}\) = \(\frac{17}{30}\) | 4,7 - 4\(\frac{2}{3}\) = 4\(\frac{7}{10}\) - 4\(\frac{2}{3}\) = \(\frac{7}{10}\) - \(\frac{2}{3}\) = \(\frac{21}{30}\) - \(\frac{20}{30}\) = \(\frac{1}{30}\) | 0,5 + \(\frac{3}{7}\) = \(\frac{1}{2}\) + \(\frac{3}{7}\) = \(\frac{7}{14}\) + \(\frac{6}{14}\) = \(\frac{13}{14}\) | \(\frac{2}{3}\) + 0,25 = \(\frac{2}{3}\) + \(\frac{1}{4}\) = \(\frac{8}{12}\) + \(\frac{3}{12}\) = \(\frac{11}{12}\) |
| \(\frac{5}{12}\) : 0,6 = \(\frac{5}{12}\) : \(\frac{6}{10}\) = \(\frac{5}{12}\) ⋅ \(\frac{10}{6}\) = \(\frac{5}{6}\) ⋅ \(\frac{5}{6}\) = \(\frac{25}{36}\) | 2\(\frac{1}{3}\) ⋅ 0,3 = \(\frac{7}{3}\) ⋅ \(\frac{3}{10}\) = \(\frac{7}{1}\) ⋅ \(\frac{1}{10}\) = \(\frac{7}{10}\) | 2\(\frac{1}{3}\) : 0,7 = \(\frac{7}{3}\) : \(\frac{7}{10}\) = \(\frac{7}{3}\) ⋅ \(\frac{10}{7}\) = \(\frac{1}{3}\) ⋅ \(\frac{10}{1}\) = \(\frac{10}{3}\) = 3\(\frac{1}{3}\) | 0,3 ⋅ 2\(\frac{2}{3}\) = \(\frac{3}{10}\) ⋅ \(\frac{8}{3}\) = \(\frac{1}{5}\) ⋅ \(\frac{4}{1}\) = \(\frac{4}{5}\) |
Ответ: смотри решение выше
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