ГДЗ по математике 5 класс Алышева Тысяча Задание 394

\[\boxed{\mathbf{394.}}\]

\[340 + 183 = 523\]

\[523 - 183 = 340\]

\[340 - 183 = 157\]

\[157 + 183 = 340\]

\[537 + 209 = 746\]

\[746 - 209 = 537\]

\[537 - 209 = 328\]

\[328 + 209 = 537\]

\[462 + 358 = 820\]

\[820 - 358 = 462\]

\[462 - 358 = 104\]

\[358 + 104 = 462\]

\[704 + 296 = 1000\]

\[1000 - 704 = 296\]

\[704 - 296 = 408\]

\[408 + 296 = 704\]