\[Страница\ 30.\]
\[\boxed{\mathbf{24.}}\]
\[8 \cdot 11 < 8 \cdot 12\]
\[17 \cdot 3 > 17 \cdot 2\]
\[24 \cdot 4 > 23 \cdot 4\]
\[7 \cdot 8 > 7 \cdot 7\]
\[\boxed{\mathbf{25.}}\]
\[1)\ 3 + 4 + 2 = 9\ (см) - длина\ \]
\[ломаной.\]

\[2)\ Длина\ каждого\ звена\ 3\ см:\]
\[3 + 3 + 3 = 9\ см.\]

\[\boxed{\mathbf{26.}}\]
| \[5\] | \[1\] | \[4\] | \[10\] |
|---|---|---|---|
| \[6\] | \[7\] | \[8\] | \[21\] |
| \[3\] | \[9\] | \[2\] | \[14\] |
| \[14\] | \[17\] | \[14\] |
| \[2\] | \[1\] | \[6\] | \[9\] |
|---|---|---|---|
| \[5\] | \[8\] | \[9\] | \[22\] |
| \[3\] | \[4\] | \[7\] | \[14\] |
| \[10\] | \[13\] | \[22\] |