ГДЗ по математике 2 класс Моро Часть 1, 2 Часть 1 | Страница 80

\[Уравнение\]

\[Страница\ 80.\]

\[\boxed{\mathbf{1.}}\]

\[9 + x = 14\]

\[x = 5.\]

\[x + 7 = 10\]

\[x = 3.\]

\[7 - x = 2\]

\[x = 5.\]

\[5 - x = 4\]

\[x = 1.\]

\[x - 1 = 0\]

\[x = 1.\]

\[10 - x = 5\]

\[x = 5.\]

\[x + 5 = 6\]

\[x = 1.\]

\[x + 3 = 4\]

\[x = 1.\]

\[\boxed{\mathbf{2.}}\]

\[18 + 2 = 34 - 14\]

\[18 + 2 = 70 - 50\]

\[34 - 14 = 70 - 50\]

\[56 - 50 = 13 - 7\]