Страница 44, ГДЗ по математике за 2 класс к проверочным работам Волковой. Серия "Школа России" к УМК Моро
Сложение и вычитание. Письменные вычисления. Проверочная работа 2. Вариант 1
\[\begin{aligned} 1) & & \textcolor{#e03131}{\mathbf{2}} + \textcolor{#e03131}{\mathbf{9}} &= 11 & \qquad 2) & & \textcolor{#e03131}{\mathbf{5}} + \textcolor{#e03131}{\mathbf{9}} &= 14 \\ & & \textcolor{#e03131}{\mathbf{3}} + \textcolor{#e03131}{\mathbf{8}} &= 11 & \qquad & & \textcolor{#e03131}{\mathbf{6}} + \textcolor{#e03131}{\mathbf{8}} &= 14 \\ & & \textcolor{#e03131}{\mathbf{4}} + \textcolor{#e03131}{\mathbf{7}} &= 11 & \qquad & & \textcolor{#e03131}{\mathbf{7}} + \textcolor{#e03131}{\mathbf{7}} &= 14 \\ & & \textcolor{#e03131}{\mathbf{5}} + \textcolor{#e03131}{\mathbf{6}} &= 11 & \qquad & & & \end{aligned}\]
\[\begin{array}{cr} & \vphantom{\overset{\bullet}{0}}23 \\ \smash{\raisebox{0.62em}{$+$}} & 46 \\ \hline & \textcolor{#e03131}{\mathbf{6}\kern-0.075em\mathbf{9}\kern-0.075em} \end{array} \qquad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}31 \\ \smash{\raisebox{0.62em}{$+$}} & 58 \\ \hline & \textcolor{#e03131}{\mathbf{8}\kern-0.075em\mathbf{9}\kern-0.075em} \end{array} \qquad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}36 \\ \smash{\raisebox{0.62em}{$+$}} & 21 \\ \hline & \textcolor{#e03131}{\mathbf{5}\kern-0.075em\mathbf{7}\kern-0.075em} \end{array} \qquad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}50 \\ \smash{\raisebox{0.62em}{$+$}} & 48 \\ \hline & \textcolor{#e03131}{\mathbf{9}\kern-0.075em\mathbf{8}\kern-0.075em} \end{array}\]
\[\hspace{0.72em}\mathclap{\raisebox{0.06em}{$\textcolor{#e03131}{\Large\bigcirc}$}}\mathclap{1}\hspace{0.72em} \qquad \hspace{0.72em}\mathclap{\raisebox{0.06em}{$\textcolor{#1c7ed6}{\Large\bigcirc}$}}\mathclap{2}\hspace{0.72em} \qquad \hspace{0.72em}\mathclap{\raisebox{0.06em}{$\textcolor{#e03131}{\Large\bigcirc}$}}\mathclap{3}\hspace{0.72em} \qquad \hspace{0.72em}\mathclap{\raisebox{0.06em}{$\textcolor{#2f9e44}{\Large\bigcirc}$}}\mathclap{4}\hspace{0.72em}\]
\[\begin{aligned} 57 + 24 &= 81 & \qquad 49 + 16 &= \textcolor{#e03131}{\mathbf{65}} \\ 57 + 26 &= \textcolor{#e03131}{\mathbf{83}} & \qquad 48 + 15 &= 63 \\ 57 + 28 &= \textcolor{#e03131}{\mathbf{85}} & \qquad 47 + 14 &= \textcolor{#e03131}{\mathbf{61}} \end{aligned}\]