\[\boxed{Стр.\ \mathbf{92}\text{.\ \ }\mathbf{ОК\ ГДЗ\ - \ домашка\ на\ 5}}\]
\[\boxed{\mathbf{1}.}\]
\[9 \cdot 2 + 9 \cdot 8 = 9 \cdot 10 = 90\]
\[9 \cdot 8 - 9 \cdot 4 = 72 - 36 = 36\]
\[9 \cdot 6 - 9 \cdot 4 = 9 \cdot 2 = 18\]
\[100 - 9 \cdot 9 = 100 - 81 = 19\]
\[54\ :6 \cdot 9 = 9 \cdot 9 = 81\]
\[45\ :5 \cdot 8 = 9 \cdot 8 = 72\]
\[(29 - 23) \cdot 9 = 6 \cdot 9 = 54\]
\[12 + 7 \cdot 9 = 12 + 63 = 75\]
\[6 \cdot 4\ :3 = 24\ :3 = 8\]
\[\boxed{\mathbf{2}.}\]
\[1)\ 0 + 9;\ \ 9 + 9;\ \ 18 + 9;\ 27 + 9;\ \ \]
\[36 + 9;\ \ 45 + 9;\ \ 54 + 9;\ \ 63 + 9;\]
\[72 + 9;\ \ 81 + 9.\]
\[2)\ 90 - 9;\ \ 81 - 9;\ \ 72 - 9;\ \ \]
\[63 - 9;\ \ 54 - 9;\ \ 45 - 9;\ \ 36 - 9;\ \ \]
\[27 - 9;\ 18 - 9;\ \ 9 - 9.\]
\[\boxed{\mathbf{3}.}\]
\[d\] | \[3\] | \[6\] | \[5\] | \[8\] | \[4\] | \[9\] | \[7\] |
---|---|---|---|---|---|---|---|
\[d \cdot 9\] | \[27\] | \[54\] | \[45\] | \[72\] | \[36\] | \[81\] | \[63\] |
\[d + 9\] | \[12\] | \[15\] | \[14\] | \[17\] | \[13\] | \[18\] | \[16\] |
\[\boxed{\mathbf{4}.}\]
\[Первый\ способ.\]
\[(36 + 12)\ :6 = 48\ :6 =\]
\[= 8\ (грядок) - заняла\ эта\ \]
\[рассада.\]
\[Второй\ способ.\]
\[36\ :6 + 12\ :6 = 6 + 2 =\]
\[= 8\ (грядок) - заняла\ эта\ \]
\[рассада.\]
\[Ответ:8\ грядок.\]
\[\boxed{\mathbf{5}.}\]
\[1\ ч = 60\ мин.\]
\[60 - (20 + 25) = 60 - 45 =\]
\[= 15\ (мин) - Таня\ учила\ \]
\[стихотворение.\]
\[Ответ:15\ мин.\]
\[\boxed{\mathbf{6}.}\]
\[71 - 46 = 25\]
\[46 + 25 = 71\]
\[55 + 37 = 92\]
\[92 - 37 = 55\]
\[28 + 52 = 80\]
\[80 - 52 = 28\]
\[16 + 29 = 45\]
\[45 - 29 = 16\]
\[60 - 32 = 28\]
\[28 + 32 = 60\]
\[83 - 64 = 19\]
\[64 + 19 = 83\]
\[100 - 48 = 52\]
\[52 + 48 = 100\]
\[33 + 67 = 100\]
\[100 - 33 = 67\]
\[\boxed{\mathbf{7}.}\]
\[(25 + 20)\ :5 = 45\ :5 = 9\]
\[25\ :5 + 15 = 5 + 15 = 20\]
\[20\ :5 + 1 = 4 + 1 = 5\]
\[(5 + 7)\ :4 = 12\ :4 = 3\]
\[(9 - 5) \cdot 5 = 4 \cdot 5 = 20\]
\[40\ :5 + 17 = 8 + 17 = 25\]
\[3 \cdot 5 + 25 = 15 + 25 = 40\]
\[20\ :4 - 2 = 5 - 2 = 3\]
\[\boxed{\mathbf{Вопрос}.}\]
\[63\ :9 = 7\]
\[(73 + 8)\ :9 = 81\ :9 = 9\]
\[(40 - 22)\ :9 = 18\ :9 = 2\]
\[\boxed{\mathbf{Задание\ на\ полях}.\ Ребусы}\]