\[\boxed{\mathbf{Страница\ 5.\ }\mathbf{Еуроки\ - \ ДЗ\ без\ мороки}}\]
\[\boxed{\mathbf{5.\ }}\]
\[\mathbf{1.}\]
\[241 > 8\]
\[67 < 405\]
\[536 > 356\]
\[\mathbf{2.}\]
\[39 + 796 = 796 + 4 + 35 =\]
\[= 800 + 35 = 835\]
\[804 - 678 = 804 - 4 - 674 =\]
\[= 800 - 674 = 126\]
\[1000 - 52 = 1000 - 50 - 2 =\]
\[= 950 - 2 = 948\]
\[\mathbf{3.\ }\]
\[1)\ 29 + 12 = 41\ (мальчиш) -\]
\[пришел\ в\ команду.\]
\[2)\ 29 + 41 = 70\ (мальчишей) -\]
\[стало\ в\ команде\ \]
\[Мальчиша - Кибальчиша.\]
\[Ответ:70\ мальчишей\ стало\ в\ \]
\[команде.\]
\[\mathbf{4.\ }\]
\[\textbf{а)}\ (100 + 80\ :5)\ :2 = 58\]
\[\textbf{б)}\ (100 - 80 + 5) \cdot 2 = 50\]
\[\boxed{\mathbf{6.\ }}\]
\[x - 92 = 258\]
\[x = 258 + 92\]
\[x = 350\]
\[Проверка:\]
\[350 - 92 = 258\]
\[258 = 258.\]
\[385 + x = 803\]
\[x = 803 - 385\]
\[x = 418\]
\[Проверка:\]
\[385 + 418 = 803\]
\[803 = 803.\]