Страница 85, ГДЗ по математике за 3 класс к проверочным работам Волковой. Серия "Школа России" к УМК Моро
Умножение и деление. Проверочная работа 3. Вариант 2
\[\begin{aligned} 8 : 5 &= \textcolor{#e03131}{\mathbf{1}}\ (\text{ост. }\textcolor{#e03131}{\mathbf{3}}) & \qquad 15 : 7 &= \textcolor{#e03131}{\mathbf{2}}\ (\text{ост. }\textcolor{#e03131}{\mathbf{1}}) \\ 19 : 8 &= \textcolor{#e03131}{\mathbf{2}}\ (\text{ост. }\textcolor{#e03131}{\mathbf{3}}) & \qquad 79 : 9 &= \textcolor{#e03131}{\mathbf{8}}\ (\text{ост. }\textcolor{#e03131}{\mathbf{7}}) \end{aligned}\]
\[\begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\frown}}}{3}54 & \underline{\,2\phantom{00}\,} \\ \underline{2}\phantom{00} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{1}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{7}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{7}\kern-0.075em}} \\ \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}15\phantom{0} & \\ \underline{14}\phantom{0} & \\ \phantom{0}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}14 & \\ \phantom{0}\underline{14} & \\ \phantom{00}0 & \end{array} \qquad \begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\frown}}}{6}75 & \underline{\,5\phantom{00}\,} \\ \underline{5}\phantom{00} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{1}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{3}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{5}\kern-0.075em}} \\ \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}17\phantom{0} & \\ \underline{15}\phantom{0} & \\ \phantom{0}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}25 & \\ \phantom{0}\underline{25} & \\ \phantom{00}0 & \end{array} \qquad \begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\frown}}}{9}36 & \underline{\,6\phantom{00}\,} \\ \underline{6}\phantom{00} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{1}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{5}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{6}\kern-0.075em}} \\ \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}33\phantom{0} & \\ \underline{30}\phantom{0} & \\ \phantom{0}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}36 & \\ \phantom{0}\underline{36} & \\ \phantom{00}0 & \end{array}\] Проверка: \[\begin{array}{cr} & \vphantom{\overset{\bullet}{0}}177 \\ \smash{\raisebox{0.62em}{$\times$}} & 2 \\ \hline & \textcolor{#e03131}{\mathbf{3}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{4}\kern-0.075em} \end{array} \qquad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}135 \\ \smash{\raisebox{0.62em}{$\times$}} & 5 \\ \hline & \textcolor{#e03131}{\mathbf{6}\kern-0.075em\mathbf{7}\kern-0.075em\mathbf{5}\kern-0.075em} \end{array} \qquad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}156 \\ \smash{\raisebox{0.62em}{$\times$}} & 6 \\ \hline & \textcolor{#e03131}{\mathbf{9}\kern-0.075em\mathbf{3}\kern-0.075em\mathbf{6}\kern-0.075em} \end{array}\]
\(1)\ 29 + 17 = \textcolor{#e03131}{\mathbf{46}}\text{ (ф.)}\)
\(2)\ 46 : 2 = \textcolor{#e03131}{\mathbf{23}}\text{ (ф.)}\)
\(3)\ 29 - 23 = \textcolor{#e03131}{\mathbf{6}}\text{ (ф.)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{6}}\) фотографий.
