Ответы к учебнику по математике за 2 класс 2 часть Рудницкая. Умножение числа 8. Умножение и деление на 8. Восьмая часть числа. Номер №17

Выполни действия.
(76 − 48) : 7
24 : (40 : 5)
(64 : 8) * 7
(28 + 28) − 28
(17 + 25) : 6
(8 + 8) : 2
92 − (32 : 8)
92 + (32 : 8)
72 : (41 − 33)
(48 : 8) : 3
(42 : 7) + 64
(38 + 34) : 8

Ответ

(76 − 48) : 7 = 4
24 : (40 : 5) = 3
(64 : 8) * 7 = 56
(28 + 28) − 28 = 28
(17 + 25) : 6 = 7
(8 + 8) : 2 = 8
92 − (32 : 8) = 88
92 + (32 : 8) = 96
72 : (41 − 33) = 9
(48 : 8) : 3 = 2
(42 : 7) + 64 = 70
(38 + 34) : 8 = 9
Вычисления:
(76 − 48) : 7 = 28 : 7 = 4

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}76\\ 48\end{array}}\\ \begin{array}{r}28\end{array}\end{array}$
24 : (40 : 5) = 24 : 8 = 3
(64 : 8) * 7 = 8 * 7 = 56
(28 + 28) − 28 = 56 − 28 = 28

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}28\\ 28\end{array}}\\ \begin{array}{r}56\end{array}\end{array}$

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}56\\ 28\end{array}}\\ \begin{array}{r}28\end{array}\end{array}$
(17 + 25) : 6 = 42 : 6 = 7

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}17\\ 25\end{array}}\\ \begin{array}{r}42\end{array}\end{array}$
(8 + 8) : 2 = 16 : 2 = 8
92 − (32 : 8) = 92 − 4 = 88

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}92\\ 4\end{array}}\\ \begin{array}{r}88\end{array}\end{array}$
92 + (32 : 8) = 92 + 4 = 96

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}92\\ 4\end{array}}\\ \begin{array}{r}96\end{array}\end{array}$
72 : (41 − 33) = 72 : 8 = 9

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}41\\ 33\end{array}}\\ \begin{array}{r}8\end{array}\end{array}$
(48 : 8) : 3​​​​​​​ = 6 : 3 = 2
(42 : 7) + 64​​​​​​​ = 6 + 64 = 70

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}6\\ 64\end{array}}\\ \begin{array}{r}70\end{array}\end{array}$
(38 + 34) : 8 = 72 : 8 = 9

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}38\\ 34\end{array}}\\ \begin{array}{r}72\end{array}\end{array}$