Страница 31, ГДЗ по математике за 4 класс к тренажёру Погореловой
Умножение и деление на однозначное число в столбик
\[\begin{array}{cr} & \vphantom{\overset{\bullet}{0}}31750 \\ \smash{\raisebox{0.62em}{$\times$}} & 6\phantom{0} \\ \hline & \textcolor{#e03131}{\mathbf{1}\kern-0.075em\mathbf{9}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \qquad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}970400 \\ \smash{\raisebox{0.62em}{$\times$}} & 4\phantom{00} \\ \hline & \textcolor{#e03131}{\mathbf{3}\kern-0.075em\mathbf{8}\kern-0.075em\mathbf{8}\kern-0.075em\mathbf{1}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \qquad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}507000 \\ \smash{\raisebox{0.62em}{$\times$}} & 8\phantom{000} \\ \hline & \textcolor{#e03131}{\mathbf{4}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array}\] \[\begin{array}{cr} & \vphantom{\overset{\bullet}{0}}64100 \\ \smash{\raisebox{0.62em}{$\times$}} & 9\phantom{00} \\ \hline & \textcolor{#e03131}{\mathbf{5}\kern-0.075em\mathbf{7}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{9}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \qquad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}485000 \\ \smash{\raisebox{0.62em}{$\times$}} & 4\phantom{000} \\ \hline & \textcolor{#e03131}{\mathbf{1}\kern-0.075em\mathbf{9}\kern-0.075em\mathbf{4}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \qquad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}794800 \\ \smash{\raisebox{0.62em}{$\times$}} & 7\phantom{00} \\ \hline & \textcolor{#e03131}{\mathbf{5}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{3}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array}\] \[\begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\frown}}}{48}56 & \underline{\,8\phantom{00}\,} \\ \underline{48}\phantom{00} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{6}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{0}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{7}\kern-0.075em}} \\ \phantom{00}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}56 & \\ \phantom{00}\underline{56} & \\ \phantom{000}0 & \end{array} \qquad \begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\frown}}}{45}20 & \underline{\,5\phantom{00}\,} \\ \underline{45}\phantom{00} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{9}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{0}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{4}\kern-0.075em}} \\ \phantom{00}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}20 & \\ \phantom{00}\underline{20} & \\ \phantom{000}0 & \end{array} \qquad \begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\frown}}}{63}49 & \underline{\,7\phantom{00}\,} \\ \underline{63}\phantom{00} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{9}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{0}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{7}\kern-0.075em}} \\ \phantom{00}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}49 & \\ \phantom{00}\underline{49} & \\ \phantom{000}0 & \end{array}\] \[\begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\frown}}}{39}00 & \underline{\,5\phantom{00}\,} \\ \underline{35}\phantom{00} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{7}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{8}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{0}\kern-0.075em}} \\ \phantom{0}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}40\phantom{0} & \\ \phantom{0}\underline{40}\phantom{0} & \\ \phantom{000}0 & \end{array} \qquad \begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\frown}}}{32}40 & \underline{\,9\phantom{00}\,} \\ \underline{27}\phantom{00} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{3}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{6}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{0}\kern-0.075em}} \\ \phantom{0}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}54\phantom{0} & \\ \phantom{0}\underline{54}\phantom{0} & \\ \phantom{000}0 & \end{array} \qquad \begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\frown}}}{28}80 & \underline{\,6\phantom{00}\,} \\ \underline{24}\phantom{00} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{4}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{8}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{0}\kern-0.075em}} \\ \phantom{0}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}48\phantom{0} & \\ \phantom{0}\underline{48}\phantom{0} & \\ \phantom{000}0 & \end{array}\] \[\begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\frown}}}{24}036 & \underline{\,4\phantom{000}\,} \\ \underline{24}\phantom{000} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{6}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{0}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{0}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{9}\kern-0.075em}} \\ \phantom{000}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}36 & \\ \phantom{000}\underline{36} & \\ \phantom{0000}0 & \end{array} \qquad \begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\frown}}}{35}049 & \underline{\,7\phantom{000}\,} \\ \underline{35}\phantom{000} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{5}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{0}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{0}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{7}\kern-0.075em}} \\ \phantom{000}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}49 & \\ \phantom{000}\underline{49} & \\ \phantom{0000}0 & \end{array}\]