\[\boxed{Магический\ квадрат.}\]
Пояснение.
Решение.
\[130\] | \[120\] | \[170\] |
---|---|---|
\[180\] | \[140\] | \[100\] |
\[110\] | \[160\] | \[150\] |
\[170 + 100 + 150 = 420\]
\[140 + 100 = 240\]
\[420 - 240 = 180\]
\[140 + 150 = 290\]
\[420 - 290 = 130\]
\[130 + 170 = 300\]
\[420 - 300 = 120\]
\[120 + 140 = 260\]
\[420 - 260 = 160\]
\[160 + 150 = 310\]
\[420 - 310 = 110\]