§ Задание 29
\[\boxed{\mathbf{29.}}\]
\[22 + 22 = 44\]
\[22 - 22 = 0\]
\[33 - 33 = 0\]
\[33 + 33 = 66\]
\[44 + 44 = 88\]
\[44 - 44 = 0\]
\[\boxed{\mathbf{29.}}\]
\[22 + 22 = 44\]
\[22 - 22 = 0\]
\[33 - 33 = 0\]
\[33 + 33 = 66\]
\[44 + 44 = 88\]
\[44 - 44 = 0\]