Страница 69, ГДЗ по математике за 1-4 класс к контрольным работам Волковой. Школа России

\[\begin{array}{cr} & \vphantom{\overset{\bullet}{0}}2376 \\ \smash{\raisebox{0.62em}{$\times$}} & 84 \\ \hline & 9504 \\ \smash{\raisebox{0.62em}{$+$}} & 19008\phantom{0} \\ \hline & \textcolor{#e03131}{\mathbf{1}\kern-0.075em\mathbf{9}\kern-0.075em\mathbf{9}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{8}\kern-0.075em\mathbf{4}\kern-0.075em} \end{array}\] \[246\,400 \mathrel{\overset{\textcolor{#1a7f37}{1}}{\vphantom{+}{:}}} 800 \mathbin{\overset{\textcolor{#1a7f37}{2}}{\vphantom{+}\cdot}} 700 = \textcolor{#e03131}{\mathbf{215\,600}}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{1)}} \\ \begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\overgroup{\hphantom{\textstyle 2464}}}}}{2464}00 & \underline{\,800\,} \\ \underline{2400}\phantom{00} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{3}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{0}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{8}\kern-0.075em}} \\ \phantom{00}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}6400 & \\ \phantom{00}\underline{6400} & \\ \phantom{00000}0 & \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{2)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}308\phantom{00} \\ \smash{\raisebox{0.62em}{$\times$}} & \vphantom{\overset{\bullet}{0}}700 \\ \hline & \textcolor{#e03131}{\mathbf{2}\kern-0.075em\mathbf{1}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \\ & \vphantom{\underline{0}} \\ & \vphantom{\underline{0}} \end{array} \end{array}\] \[5\,340 \mathrel{\overset{\textcolor{#1a7f37}{1}}{\vphantom{+}{:}}} 60 \mathbin{\overset{\textcolor{#1a7f37}{2}}{\vphantom{+}\cdot}} 56 = \textcolor{#e03131}{\mathbf{4\,984}}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{1)}} \\ \begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\overgroup{\hphantom{\textstyle 534}}}}}{534}0 & \underline{\,60\,} \\ \underline{480}\phantom{0} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{8}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{9}\kern-0.075em}} \\ \phantom{0}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}540 & \\ \phantom{0}\underline{540} & \\ \phantom{000}0 & \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{2)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}89 \\ \smash{\raisebox{0.62em}{$\times$}} & \vphantom{\overset{\bullet}{0}}56 \\ \hline & 534 \\ \smash{\raisebox{0.62em}{$+$}} & 445\phantom{0} \\ \hline & \textcolor{#e03131}{\mathbf{4}\kern-0.075em\mathbf{9}\kern-0.075em\mathbf{8}\kern-0.075em\mathbf{4}\kern-0.075em} \end{array} \end{array}\]

\(1)\ 12 - 5 = \textcolor{#e03131}{\mathbf{7}}\text{ (т.)}\)
\(2)\ 56 : 7 = \textcolor{#e03131}{\mathbf{8}}\text{ (р.)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{8}}\) р.

\(1)\ 30 \cdot 20 = \textcolor{#e03131}{\mathbf{600}}\text{ (м}^2\text{)}\)
\(2)\ 600 : 3 \cdot 2 = \textcolor{#e03131}{\mathbf{400}}\text{ (м}^2\text{)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{400}}\) м².

\[\begin{aligned} 60 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{\cdot}}}}\hspace{0.72em}} 20 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 200 &= 1\,000 & \qquad 800 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{:}}}}\hspace{0.72em}} 20 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 40 &= 80 \end{aligned}\]

\[\begin{array}{cr} & \vphantom{\overset{\bullet}{0}}3528 \\ \smash{\raisebox{0.62em}{$\times$}} & 74 \\ \hline & 14112 \\ \smash{\raisebox{0.62em}{$+$}} & 24696\phantom{0} \\ \hline & \textcolor{#e03131}{\mathbf{2}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{1}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{7}\kern-0.075em\mathbf{2}\kern-0.075em} \end{array}\] \[146\,300 \mathrel{\overset{\textcolor{#1a7f37}{1}}{\vphantom{+}{:}}} 700 \mathbin{\overset{\textcolor{#1a7f37}{2}}{\vphantom{+}\cdot}} 300 = \textcolor{#e03131}{\mathbf{62\,700}}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{1)}} \\ \begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\overgroup{\hphantom{\textstyle 1463}}}}}{1463}00 & \underline{\,700\,} \\ \underline{1400}\phantom{00} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{2}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{0}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{9}\kern-0.075em}} \\ \phantom{00}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}6300 & \\ \phantom{00}\underline{6300} & \\ \phantom{00000}0 & \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{2)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}209\phantom{00} \\ \smash{\raisebox{0.62em}{$\times$}} & \vphantom{\overset{\bullet}{0}}300 \\ \hline & \textcolor{#e03131}{\mathbf{6}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{7}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \\ & \vphantom{\underline{0}} \\ & \vphantom{\underline{0}} \end{array} \end{array}\] \[2\,340 \mathrel{\overset{\textcolor{#1a7f37}{1}}{\vphantom{+}{:}}} 30 \mathbin{\overset{\textcolor{#1a7f37}{2}}{\vphantom{+}\cdot}} 69 = \textcolor{#e03131}{\mathbf{5\,382}}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{1)}} \\ \begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\overgroup{\hphantom{\textstyle 234}}}}}{234}0 & \underline{\,30\,} \\ \underline{210}\phantom{0} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{7}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{8}\kern-0.075em}} \\ \phantom{0}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}240 & \\ \phantom{0}\underline{240} & \\ \phantom{000}0 & \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{2)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}78 \\ \smash{\raisebox{0.62em}{$\times$}} & \vphantom{\overset{\bullet}{0}}69 \\ \hline & 702 \\ \smash{\raisebox{0.62em}{$+$}} & 468\phantom{0} \\ \hline & \textcolor{#e03131}{\mathbf{5}\kern-0.075em\mathbf{3}\kern-0.075em\mathbf{8}\kern-0.075em\mathbf{2}\kern-0.075em} \end{array} \end{array}\]

\(1)\ 11 - 5 = \textcolor{#e03131}{\mathbf{6}}\text{ (ящ.)}\)
\(2)\ 18 : 6 = \textcolor{#e03131}{\mathbf{3}}\text{ (кг)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{3}}\) кг.

\(1)\ 60 \cdot 30 = \textcolor{#e03131}{\mathbf{1\,800}}\text{ (м}^2\text{)}\)
\(2)\ 1\,800 : 9 \cdot 2 = \textcolor{#e03131}{\mathbf{400}}\text{ (м}^2\text{)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{400}}\) м².

\[\begin{aligned} 80 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{\cdot}}}}\hspace{0.72em}} 20 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 600 &= 1\,000 & \qquad 900 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{:}}}}\hspace{0.72em}} 30 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 30 &= 60 \end{aligned}\]