Страница 29, ГДЗ по математике за 1-4 класс к контрольным работам Волковой. Школа России
2 класс. Итоговая контрольная работа за III четверть. Вариант 1
1) \[\begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{3}}6 \\ \smash{\raisebox{0.62em}{$+$}} & 48 \\ \hline & \textcolor{#e03131}{\mathbf{8}\kern-0.075em\mathbf{4}\kern-0.075em} \end{array} \qquad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{7}}3 \\ \smash{\raisebox{0.62em}{$-$}} & 37 \\ \hline & \textcolor{#e03131}{\mathbf{3}\kern-0.075em\mathbf{6}\kern-0.075em} \end{array} \qquad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{1}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{0}}0 \\ \smash{\raisebox{0.62em}{$-$}} & 56 \\ \hline & \textcolor{#e03131}{\mathbf{4}\kern-0.075em\mathbf{4}\kern-0.075em} \end{array}\] Проверка: \[\begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{8}}4 \\ \smash{\raisebox{0.62em}{$-$}} & 48 \\ \hline & \textcolor{#e03131}{\mathbf{3}\kern-0.075em\mathbf{6}\kern-0.075em} \end{array} \qquad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{3}}6 \\ \smash{\raisebox{0.62em}{$+$}} & 37 \\ \hline & \textcolor{#e03131}{\mathbf{7}\kern-0.075em\mathbf{3}\kern-0.075em} \end{array} \qquad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{4}}4 \\ \smash{\raisebox{0.62em}{$+$}} & 56 \\ \hline & \textcolor{#e03131}{\mathbf{1}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array}\] 2) \[93 \overset{\textcolor{#1a7f37}{2}}{-} (74 \overset{\textcolor{#1a7f37}{1}}{-} 46) = \textcolor{#e03131}{\mathbf{65}}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{1)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{7}}4 \\ \smash{\raisebox{0.62em}{$-$}} & 46 \\ \hline & \textcolor{#e03131}{\mathbf{2}\kern-0.075em\mathbf{8}\kern-0.075em} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{2)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{9}}3 \\ \smash{\raisebox{0.62em}{$-$}} & 28 \\ \hline & \textcolor{#e03131}{\mathbf{6}\kern-0.075em\mathbf{5}\kern-0.075em} \end{array} \end{array}\]
\[\begin{aligned} 3 \cdot 4 &= \textcolor{#e03131}{\mathbf{12}} & \qquad 2 \cdot 7 &= \textcolor{#e03131}{\mathbf{14}} & \qquad 24 : 3 &= \textcolor{#e03131}{\mathbf{8}} & \qquad 18 : 2 &= \textcolor{#e03131}{\mathbf{9}} \\ 8 \cdot 2 &= \textcolor{#e03131}{\mathbf{16}} & \qquad 3 \cdot 5 &= \textcolor{#e03131}{\mathbf{15}} & \qquad 10 : 2 &= \textcolor{#e03131}{\mathbf{5}} & \qquad 21 : 3 &= \textcolor{#e03131}{\mathbf{7}} \\ 3 \cdot 9 &= \textcolor{#e03131}{\mathbf{27}} & \qquad 3 \cdot 2 &= \textcolor{#e03131}{\mathbf{6}} & \qquad 16 : 2 &= \textcolor{#e03131}{\mathbf{8}} & \qquad 80 : 8 &= \textcolor{#e03131}{\mathbf{10}} \end{aligned}\]
\[\begin{aligned} 74 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 80}}}{+} 6 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 90 & \qquad \overset{\textcolor{#808080}{\scriptstyle 29\text{ см}}}{2\text{ дм }9\text{ см}} &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} \overset{\textcolor{#808080}{\scriptstyle 100\text{ см}}}{1\text{ м}} \end{aligned}\]
\(1)\ 20 - 5 = \textcolor{#e03131}{\mathbf{15}}\text{ (в.)}\)
\(2)\ 15 - 7 = \textcolor{#e03131}{\mathbf{8}}\text{ (в.)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{8}}\) вафель.
\(22 - 10 = \textcolor{#e03131}{\mathbf{12}}\text{ (ж.)}\)
Ответ: на \(\textcolor{#e03131}{\mathbf{12}}\) желудей.
\(P = 2 + 5 + 2 + 5 = \textcolor{#e03131}{\mathbf{14}}\text{ (см)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{14}}\) см.
\(1)\ 12 + 3 = \textcolor{#e03131}{\mathbf{15}}\text{ (уч.)}\)
\(2)\ 15 - 7 = \textcolor{#e03131}{\mathbf{8}}\text{ (уч.)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{8}}\) учеников.
2 класс. Итоговая контрольная работа за III четверть. Вариант 2
1) \[\begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{4}}7 \\ \smash{\raisebox{0.62em}{$+$}} & 26 \\ \hline & \textcolor{#e03131}{\mathbf{7}\kern-0.075em\mathbf{3}\kern-0.075em} \end{array} \qquad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{6}}4 \\ \smash{\raisebox{0.62em}{$-$}} & 47 \\ \hline & \textcolor{#e03131}{\mathbf{1}\kern-0.075em\mathbf{7}\kern-0.075em} \end{array} \qquad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{8}}0 \\ \smash{\raisebox{0.62em}{$-$}} & 63 \\ \hline & \textcolor{#e03131}{\mathbf{1}\kern-0.075em\mathbf{7}\kern-0.075em} \end{array}\] Проверка: \[\begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{7}}3 \\ \smash{\raisebox{0.62em}{$-$}} & 26 \\ \hline & \textcolor{#e03131}{\mathbf{4}\kern-0.075em\mathbf{7}\kern-0.075em} \end{array} \qquad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{1}}7 \\ \smash{\raisebox{0.62em}{$+$}} & 47 \\ \hline & \textcolor{#e03131}{\mathbf{6}\kern-0.075em\mathbf{4}\kern-0.075em} \end{array} \qquad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{1}}7 \\ \smash{\raisebox{0.62em}{$+$}} & 63 \\ \hline & \textcolor{#e03131}{\mathbf{8}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array}\] 2) \[100 \overset{\textcolor{#1a7f37}{2}}{-} (24 \overset{\textcolor{#1a7f37}{1}}{+} 47) = \textcolor{#e03131}{\mathbf{29}}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{1)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{2}}4 \\ \smash{\raisebox{0.62em}{$+$}} & 47 \\ \hline & \textcolor{#e03131}{\mathbf{7}\kern-0.075em\mathbf{1}\kern-0.075em} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{2)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{1}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{0}}0 \\ \smash{\raisebox{0.62em}{$-$}} & 71 \\ \hline & \textcolor{#e03131}{\mathbf{2}\kern-0.075em\mathbf{9}\kern-0.075em} \end{array} \end{array}\]