ГДЗ Задачник по математике 5 класс Бунимович. Порядок действий в вычислениях. Задание 114

Выполните действия:
а) 215 * (368 − 274) * (78 + 8664 : 76);
б) (8034 : 78 + 256) + 68 * (127 + 128);
в) 4080 − (352719 − 57837) : 98 + 307 * 107;
г) 988 + 1530 * (12 * 6 − 38) * 15.

Ответ к заданию а

$215\stackrel{4}{\ast \; <!--\; \ast \; -->}(368\stackrel{1}{-\; <!--\; -\; -->}274)\stackrel{5}{\ast \; <!--\; \ast \; -->}(78\stackrel{3}{+}8664\stackrel{2}{:}76)=215\ast \; <!--\; \ast \; -->94\ast \; <!--\; \ast \; -->(78+114)=20210\ast \; <!--\; \ast \; -->192=3880320$

1)

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}368\\ 274\end{array}}\\ \begin{array}{r}94\end{array}\end{array}$
;


2)

$\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}8664\\ \phantom{0}\underset{¯}{76}\\ \underset{¯}{\phantom{0}}106\\ \phantom{00}\underset{¯}{76}\\ \phantom{0}\underset{¯}{\phantom{0}}304\\ \phantom{00}\underset{¯}{304}\\ \phantom{0000}0\end{array}& \begin{array}{l}\overline{)76}\\ \overline{\overline{)114}}\end{array}\end{array}$
;


3)

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}78\\ 114\end{array}}\\ \begin{array}{r}192\end{array}\end{array}$
;


4)

$\begin{array}{r}\times \underset{¯}{\begin{array}{r}215\\ 94\end{array}}\\ 860\\ 1935\phantom{0}\\ \overline{20210}\end{array}$
;


5)
.

Ответ к заданию б

$(8034\stackrel{1}{:}78\stackrel{2}{+}256)\stackrel{5}{+}68\stackrel{4}{\ast \; <!--\; \ast \; -->}(127\stackrel{3}{+}128)=(103+256)+68\ast \; <!--\; \ast \; -->255=359+17340=17699$

1)

$\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}8034\\ \phantom{0}\underset{¯}{78}\\ \phantom{0}\underset{¯}{\phantom{0}}23\\ \phantom{000}\underset{¯}{0}\\ \phantom{0}\underset{¯}{\phantom{0}}234\\ \phantom{00}\underset{¯}{234}\\ \phantom{0000}0\end{array}& \begin{array}{l}\overline{)78}\\ \overline{\overline{)103}}\end{array}\end{array}$
;


2)

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}103\\ 256\end{array}}\\ \begin{array}{r}359\end{array}\end{array}$
;


3)

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}127\\ 128\end{array}}\\ \begin{array}{r}255\end{array}\end{array}$
;


4)

$\begin{array}{r}\times \underset{¯}{\begin{array}{r}68\\ 255\end{array}}\\ 340\\ 340\phantom{0}\\ 136\phantom{00}\\ \overline{17340}\end{array}$
;


5)

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}17340\\ 359\end{array}}\\ \begin{array}{r}17699\end{array}\end{array}$
.

Ответ к заданию в

$4080\stackrel{4}{-\; <!--\; -\; -->}(352719\stackrel{1}{-\; <!--\; -\; -->}57837)\stackrel{2}{:}98\stackrel{5}{+}307\stackrel{3}{\ast \; <!--\; \ast \; -->}107=4080-\; <!--\; -\; -->294882:98+307\ast \; <!--\; \ast \; -->107=4080-\; <!--\; -\; -->3009+32849=1071+32849=33920$

1)

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}352719\\ 57837\end{array}}\\ \begin{array}{r}294882\end{array}\end{array}$
;


2)

$\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}294882\\ \phantom{0}\underset{¯}{294}\\ \phantom{000}\underset{¯}{\phantom{0}}8\\ \phantom{0000}\underset{¯}{0}\\ \phantom{000}\underset{¯}{\phantom{0}}88\\ \phantom{00000}\underset{¯}{0}\\ \phantom{000}\underset{¯}{\phantom{0}}882\\ \phantom{0000}\underset{¯}{882}\\ \phantom{000000}0\end{array}& \begin{array}{l}\overline{)98}\\ \overline{\overline{)3009}}\end{array}\end{array}$
;


3)

$\begin{array}{r}\times \underset{¯}{\begin{array}{r}307\\ 107\end{array}}\\ 2149\\ 0\phantom{0}\\ 307\phantom{00}\\ \overline{32849}\end{array}$
;


4)

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}4080\\ 3009\end{array}}\\ \begin{array}{r}1071\end{array}\end{array}$
;


5)

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}1071\\ 32849\end{array}}\\ \begin{array}{r}33920\end{array}\end{array}$
.

Ответ к заданию г

$988\stackrel{5}{+}1530\stackrel{3}{\ast \; <!--\; \ast \; -->}(12\stackrel{1}{\ast \; <!--\; \ast \; -->}6\stackrel{2}{-\; <!--\; -\; -->}38)\stackrel{4}{\ast \; <!--\; \ast \; -->}15=988+1530\ast \; <!--\; \ast \; -->(72-\; <!--\; -\; -->38)\ast \; <!--\; \ast \; -->15=988+1530\ast \; <!--\; \ast \; -->34\ast \; <!--\; \ast \; -->15=988+52020\ast \; <!--\; \ast \; -->15=988+780300=781288$

1)

$\begin{array}{r}\times \underset{¯}{\begin{array}{r}12\\ 6\end{array}}\\ 72\end{array}$
;


2)

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


3)
;


4)
;


5)

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}988\\ 780300\end{array}}\\ \begin{array}{r}781288\end{array}\end{array}$
.

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