\[Страница\ 30.\]
Вопрос (стр. 30)
\[\boxed{\mathbf{Вопрос}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[65\ :20 = 3\ (ост.\ 5)\]
\[20 \cdot 3 + 5 = 65\]
\[39\ :12 = 3\ (ост.\ 3)\]
\[12 \cdot 3 + 3 = 39\]
\[\boxed{\mathbf{1}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[50\ :15 = 3\ (ост.\ 5)\]
\[18\ :27 = 0\ (ост.\ 18)\]
\[89\ :22 = 4\ (ост.\ 1)\]
\[75\ :18 = 4\ (ост.\ 3)\]
\[100\ :30 = 3\ (ост.\ 10)\]
\[76\ :20 = 3\ (ост.\ 16)\]
\[57\ :42 = 1\ (ост.\ 15)\]
\[28\ :17 = 1\ (ост.\ 11)\]
\[25\ :26 = 0\ (ост.\ 25)\]
\[9\ :13 = 0\ (ост.\ 9)\]
\[15 \cdot 3 + 5 = 50\]
\[27 \cdot 0 + 18 = 18\]
\[22 \cdot 4 + 1 = 89\]
\[18 \cdot 4 + 3 = 75\]
\[30 \cdot 3 + 10 = 100\]
\[20 \cdot 3 + 16 = 76\]
\[42 \cdot 1 + 15 = 57\]
\[17 \cdot 1 + 11 = 28\]
\[26 \cdot 0 + 25 = 25\]
\[13 \cdot 0 + 9 = 9\]
\[\boxed{\mathbf{2}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[a\] | \[72\] | \[72\] | \[72\] | \[72\] | \[72\] | \[72\] | \[72\] |
---|---|---|---|---|---|---|---|
\[b\] | \[2\] | \[3\] | \[4\] | \[6\] | \[8\] | \[1\] | \[72\] |
\[a\ :b\] | \[36\] | \[24\] | \[18\] | \[12\] | \[9\] | \[72\] | \[1\] |
\[\boxed{\mathbf{3}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ 15 + 6 = 21\ (мин) -\]
\[потратил\ мальчик\ на\]
\[\ остальной\ путь.\]
\[2)\ 15 + 21 = 36\ (мин) -\]
\[затратил\ мальчик\ на\ \]
\[весь\ путь.\]
\[Ответ:\ \ 36\ минут.\]
\[\boxed{\mathbf{4}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[Закрашен\ 1\ см^{2};\ \ \ \]
\[не\ закрашено\ 3\ см².\]
\[\boxed{\mathbf{5}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[45\ :15 = 3\]
\[99\ :33 = 3\]
\[80\ :16 = 5\]
\[78\ :6 \cdot 3 = 13 \cdot 3 = 39\]
\[51\ :3 \cdot 4 = 17 \cdot 4 = 68\]
\[84\ :4 \cdot 3 = 21 \cdot 3 = 63\]
\[100 - 2 \cdot 18 = 100 - 36 = 64\]
\[100 - 3 \cdot 18 = 100 - 54 = 46\]
\[100 - 4 \cdot 18 = 100 - 72 = 28\]
\[(34 + 36)\ :10 = 70\ :10 = 7\]
\[(75 - 33)\ :3 = 42\ :3 = 14\]
\[(82 - 16)\ :33 = 66\ :33 = 2\]
\[\boxed{\mathbf{6}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[P_{1} = 24\ мм\ \cdot 4 = 96\ мм.\]
\[P_{2} = 33\ мм\ \cdot 3 = 99\ мм.\]
\[P_{3} = 15\ мм\ \cdot 6 = 90\ мм.\]
\[\boxed{\mathbf{7}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[{2\ + \ 15\ + \ 36\ + \ 47\ = \ 100; }{2\ + \ 15\ + \ 46\ + \ 37\ = \ 100; }{2\ + \ 45\ + \ 16\ + \ 37\ = \ 100; }{3\ + \ 14\ + \ 26\ + \ 57\ = \ 100; }{3\ + \ 14\ + \ 56\ + \ 27\ = \ 100; }{4\ + \ 13\ + \ 26\ + \ 57\ = \ 100; }{4\ + \ 23\ + \ 16\ + \ 57\ = \ 100; }{4\ + \ 13\ + \ 56\ + \ 27\ = \ 100; }{5\ + \ 12\ + \ 36\ + \ 47\ = \ 100; }{5\ + \ 32\ + \ 16\ + \ 47\ = \ 100; }{5\ + \ 12\ + \ 46\ + \ 37\ = \ 100; }{6\ + \ 13\ + \ 24\ + \ 56\ = \ 100; }{6\ + \ 23\ + \ 14\ + \ 56\ = \ 100; }{6\ + \ 13\ + \ 54\ + \ 26\ = \ 100. }\]