Страница 75, ГДЗ по математике за 3 класс к проверочным работам Волковой. Серия "Школа России" к УМК Моро
Сложение и вычитание. Проверочная работа 2. Вариант 2
\[\begin{array}{cr} & \vphantom{\overset{\bullet}{0}}318 \\ \smash{\raisebox{0.62em}{$+$}} & 451 \\ \hline & \textcolor{#e03131}{\mathbf{7}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{9}\kern-0.075em} \end{array} \quad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{4}}82 \\ \smash{\raisebox{0.62em}{$+$}} & 347 \\ \hline & \textcolor{#e03131}{\mathbf{8}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{9}\kern-0.075em} \end{array} \quad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}749 \\ \smash{\raisebox{0.62em}{$-$}} & 321 \\ \hline & \textcolor{#e03131}{\mathbf{4}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{8}\kern-0.075em} \end{array} \quad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{6}}27 \\ \smash{\raisebox{0.62em}{$-$}} & 486 \\ \hline & \textcolor{#e03131}{\mathbf{1}\kern-0.075em\mathbf{4}\kern-0.075em\mathbf{1}\kern-0.075em} \end{array} \quad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{7}}4 \\ \smash{\raisebox{0.62em}{$+$}} & 96 \\ \hline & \textcolor{#e03131}{\mathbf{1}\kern-0.075em\mathbf{7}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array}\]
\[\begin{aligned} 400\text{ мин} &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} \overset{\textcolor{#808080}{\scriptstyle 240\text{ мин}}}{4\text{ ч}} & \qquad \overset{\textcolor{#808080}{\scriptstyle 23\text{ дм}}}{2\text{ м }3\text{ дм}} &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} \overset{\textcolor{#808080}{\scriptstyle 32\text{ дм}}}{3\text{ м }2\text{ дм}} \\ 28 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 84}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 3 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 3 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 246}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 82 \end{aligned}\]
\[\begin{aligned} 400 - x &= 100 & \qquad 800 - x &= 200 \\ x &= 400 - 100 & \qquad x &= 800 - 200 \\ x &= \textcolor{#e03131}{\mathbf{300}} & \qquad x &= \textcolor{#e03131}{\mathbf{600}} \end{aligned}\]
\(1)\ 140 + 200 = \textcolor{#e03131}{\mathbf{340}}\text{ (б.)}\)
\(2)\ 460 - 340 = \textcolor{#e03131}{\mathbf{120}}\text{ (б.)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{120}}\) билетов.
\[\begin{array}{r} \vphantom{\boxed{\mathbf{0}}}\hspace{1.45em}\hspace{0.725em}\mathclap{4}\hspace{0.725em}\hspace{0.725em}\mathclap{5}\hspace{0.725em} \\ \vphantom{\boxed{\mathbf{0}}}\rule[-0.55em]{0pt}{0.55em}\hspace{0.725em}\mathclap{\smash{\raisebox{0.72em}{$+$}}}\hspace{0.725em}\hspace{0.725em}\mathclap{3}\hspace{0.725em}\hspace{0.725em}\mathclap{\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}}\hspace{0.725em} \\ \hline \vphantom{\boxed{\mathbf{0}}}\rule{0pt}{1.2em}\hspace{1.45em}\hspace{0.725em}\mathclap{\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em}}\hspace{0.725em}\hspace{0.725em}\mathclap{9}\hspace{0.725em} \end{array} \qquad \begin{array}{r} \vphantom{\boxed{\mathbf{0}}}\hspace{1.45em}\hspace{0.725em}\mathclap{6}\hspace{0.725em}\hspace{0.725em}\mathclap{8}\hspace{0.725em} \\ \vphantom{\boxed{\mathbf{0}}}\rule[-0.55em]{0pt}{0.55em}\hspace{0.725em}\mathclap{\smash{\raisebox{0.72em}{$+$}}}\hspace{0.725em}\hspace{0.725em}\mathclap{2}\hspace{0.725em}\hspace{0.725em}\mathclap{\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em}}\hspace{0.725em} \\ \hline \vphantom{\boxed{\mathbf{0}}}\rule{0pt}{1.2em}\hspace{1.45em}\hspace{0.725em}\mathclap{\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em}}\hspace{0.725em}\hspace{0.725em}\mathclap{4}\hspace{0.725em} \end{array} \qquad \begin{array}{r} \vphantom{\boxed{\mathbf{0}}}\hspace{1.45em}\hspace{0.725em}\mathclap{7}\hspace{0.725em}\hspace{0.725em}\mathclap{\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em}}\hspace{0.725em} \\ \vphantom{\boxed{\mathbf{0}}}\rule[-0.55em]{0pt}{0.55em}\hspace{0.725em}\mathclap{\smash{\raisebox{0.72em}{$-$}}}\hspace{0.725em}\hspace{0.725em}\mathclap{\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}}\hspace{0.725em}\hspace{0.725em}\mathclap{5}\hspace{0.725em} \\ \hline \vphantom{\boxed{\mathbf{0}}}\rule{0pt}{1.2em}\hspace{1.45em}\hspace{0.725em}\mathclap{3}\hspace{0.725em}\hspace{0.725em}\mathclap{2}\hspace{0.725em} \end{array} \qquad \begin{array}{r} \vphantom{\boxed{\mathbf{0}}}\hspace{1.45em}\hspace{0.725em}\mathclap{\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em}}\hspace{0.725em}\hspace{0.725em}\mathclap{2}\hspace{0.725em} \\ \vphantom{\boxed{\mathbf{0}}}\rule[-0.55em]{0pt}{0.55em}\hspace{0.725em}\mathclap{\smash{\raisebox{0.72em}{$-$}}}\hspace{0.725em}\hspace{0.725em}\mathclap{4}\hspace{0.725em}\hspace{0.725em}\mathclap{\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em}}\hspace{0.725em} \\ \hline \vphantom{\boxed{\mathbf{0}}}\rule{0pt}{1.2em}\hspace{1.45em}\hspace{0.725em}\mathclap{4}\hspace{0.725em}\hspace{0.725em}\mathclap{5}\hspace{0.725em} \end{array}\]
