Страница 36, ГДЗ по математике за 4 класс к тренажёру Погореловой

\[2\,370 \overset{\textcolor{#1a7f37}{1}}{\cdot} 50 \overset{\textcolor{#1a7f37}{3}}{+} 40\,700 \overset{\textcolor{#1a7f37}{2}}{\cdot} 90 = \textcolor{#e03131}{\mathbf{3\,781\,500}}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{1)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}2370\phantom{0} \\ \smash{\raisebox{0.62em}{$\times$}} & 50\phantom{0} \\ \hline & \textcolor{#e03131}{\mathbf{1}\kern-0.075em\mathbf{1}\kern-0.075em\mathbf{8}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{2)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}40700\phantom{0} \\ \smash{\raisebox{0.62em}{$\times$}} & 90\phantom{00} \\ \hline & \textcolor{#e03131}{\mathbf{3}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{3}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{3)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}36\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{6}}3000 \\ \smash{\raisebox{0.62em}{$+$}} & 118500 \\ \hline & \textcolor{#e03131}{\mathbf{3}\kern-0.075em\mathbf{7}\kern-0.075em\mathbf{8}\kern-0.075em\mathbf{1}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array}\] \[84\,090 \overset{\textcolor{#1a7f37}{1}}{\cdot} 300 \overset{\textcolor{#1a7f37}{3}}{-} 64\,780 \overset{\textcolor{#1a7f37}{2}}{\cdot} 700\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{1)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}84090\phantom{00} \\ \smash{\raisebox{0.62em}{$\times$}} & 300\phantom{0} \\ \hline & \textcolor{#e03131}{\mathbf{2}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{7}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{2)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}64780\phantom{00} \\ \smash{\raisebox{0.62em}{$\times$}} & 700\phantom{0} \\ \hline & \textcolor{#e03131}{\mathbf{4}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{3}\kern-0.075em\mathbf{4}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array}\]

Уменьшаемое \(25\,227\,000\) меньше вычитаемого \(45\,346\,000\), поэтому вычитание выполнить нельзя: в примере, видимо, опечатка. Если поменять местами множители \(300\) и \(700\):

\[84\,090 \overset{\textcolor{#1a7f37}{1}}{\cdot} 700 \overset{\textcolor{#1a7f37}{3}}{-} 64\,780 \overset{\textcolor{#1a7f37}{2}}{\cdot} 300 = \textcolor{#e03131}{\mathbf{39\,429\,000}}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{1)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}84090\phantom{00} \\ \smash{\raisebox{0.62em}{$\times$}} & 700\phantom{0} \\ \hline & \textcolor{#e03131}{\mathbf{5}\kern-0.075em\mathbf{8}\kern-0.075em\mathbf{8}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{3}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{2)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}64780\phantom{00} \\ \smash{\raisebox{0.62em}{$\times$}} & 300\phantom{0} \\ \hline & \textcolor{#e03131}{\mathbf{1}\kern-0.075em\mathbf{9}\kern-0.075em\mathbf{4}\kern-0.075em\mathbf{3}\kern-0.075em\mathbf{4}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{3)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{5}}88\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{6}}3000 \\ \smash{\raisebox{0.62em}{$-$}} & 19434000 \\ \hline & \textcolor{#e03131}{\mathbf{3}\kern-0.075em\mathbf{9}\kern-0.075em\mathbf{4}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{9}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array}\] \[768\,900 \overset{\textcolor{#1a7f37}{1}}{\cdot} 40 \overset{\textcolor{#1a7f37}{3}}{-} 20\,400 \overset{\textcolor{#1a7f37}{2}}{\cdot} 600 = \textcolor{#e03131}{\mathbf{18\,516\,000}}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{1)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}768900\phantom{0} \\ \smash{\raisebox{0.62em}{$\times$}} & 40\phantom{00} \\ \hline & \textcolor{#e03131}{\mathbf{3}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{7}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{2)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}20400\phantom{00} \\ \smash{\raisebox{0.62em}{$\times$}} & 600\phantom{00} \\ \hline & \textcolor{#e03131}{\mathbf{1}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{4}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{3)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{3}}0756000 \\ \smash{\raisebox{0.62em}{$-$}} & 12240000 \\ \hline & \textcolor{#e03131}{\mathbf{1}\kern-0.075em\mathbf{8}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{1}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array}\] \[54\,890 \overset{\textcolor{#1a7f37}{1}}{\cdot} 800 \overset{\textcolor{#1a7f37}{3}}{+} 730\,240 \overset{\textcolor{#1a7f37}{2}}{\cdot} 20 = \textcolor{#e03131}{\mathbf{58\,516\,800}}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{1)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}54890\phantom{00} \\ \smash{\raisebox{0.62em}{$\times$}} & 800\phantom{0} \\ \hline & \textcolor{#e03131}{\mathbf{4}\kern-0.075em\mathbf{3}\kern-0.075em\mathbf{9}\kern-0.075em\mathbf{1}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{2)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}730240\phantom{0} \\ \smash{\raisebox{0.62em}{$\times$}} & 20\phantom{0} \\ \hline & \textcolor{#e03131}{\mathbf{1}\kern-0.075em\mathbf{4}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{4}\kern-0.075em\mathbf{8}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{3)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}4\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{3}}912000 \\ \smash{\raisebox{0.62em}{$+$}} & 14604800 \\ \hline & \textcolor{#e03131}{\mathbf{5}\kern-0.075em\mathbf{8}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{1}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{8}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array}\] \[3\,724\,000 \overset{\textcolor{#1a7f37}{1}}{\cdot} 70 \overset{\textcolor{#1a7f37}{3}}{-} 504\,700 \overset{\textcolor{#1a7f37}{2}}{\cdot} 30 = \textcolor{#e03131}{\mathbf{245\,539\,000}}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{1)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}3724000\phantom{0} \\ \smash{\raisebox{0.62em}{$\times$}} & 70\phantom{000} \\ \hline & \textcolor{#e03131}{\mathbf{2}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{8}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{2)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}504700\phantom{0} \\ \smash{\raisebox{0.62em}{$\times$}} & 30\phantom{00} \\ \hline & \textcolor{#e03131}{\mathbf{1}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{1}\kern-0.075em\mathbf{4}\kern-0.075em\mathbf{1}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{3)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}2\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{6}}06\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{8}}0000 \\ \smash{\raisebox{0.62em}{$-$}} & 15141000 \\ \hline & \textcolor{#e03131}{\mathbf{2}\kern-0.075em\mathbf{4}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{3}\kern-0.075em\mathbf{9}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array}\] \[41\,070 \overset{\textcolor{#1a7f37}{1}}{\cdot} 200 \overset{\textcolor{#1a7f37}{3}}{+} 489\,000 \overset{\textcolor{#1a7f37}{2}}{\cdot} 90 = \textcolor{#e03131}{\mathbf{52\,224\,000}}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{1)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}41070\phantom{00} \\ \smash{\raisebox{0.62em}{$\times$}} & 200\phantom{0} \\ \hline & \textcolor{#e03131}{\mathbf{8}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{1}\kern-0.075em\mathbf{4}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{2)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}489000\phantom{0} \\ \smash{\raisebox{0.62em}{$\times$}} & 90\phantom{000} \\ \hline & \textcolor{#e03131}{\mathbf{4}\kern-0.075em\mathbf{4}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{1}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{3)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{4}}4010000 \\ \smash{\raisebox{0.62em}{$+$}} & 8214000 \\ \hline & \textcolor{#e03131}{\mathbf{5}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{4}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array}\]