Часть 2 страница 9, ГДЗ по математике за 2 класс к рабочей тетради Моро
Вычисления вида 92 − 45
\[\begin{array}{l} 16,\ 17,\ 18,\ 26,\ 27,\ 28,\ 36,\ 37,\ 38,\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em},\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em},\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em}, \\[4pt] \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em}. \end{array}\] \(\textcolor{#808080}{\text{Числа идут тройками}}\) \(\textcolor{#808080}{\text{подряд; каждая следующая}}\) \(\textcolor{#808080}{\text{тройка на 10 больше}}\) \(\textcolor{#808080}{\text{предыдущей.}}\)
\[\begin{array}{c} \hspace{0.87em}\mathclap{\begin{array}{c}\LARGE\bigcirc\end{array}}\mathclap{13}\hspace{0.87em} \\[6pt] {\def\arraystretch{1.5}\begin{array}{cc} \boxed{\kern0.035em\mathbf{4}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} \end{array}} \end{array} \qquad \begin{array}{c} \hspace{0.87em}\mathclap{\begin{array}{c}\LARGE\bigcirc\end{array}}\mathclap{12}\hspace{0.87em} \\[6pt] {\def\arraystretch{1.5}\begin{array}{cc} \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} \end{array}} \end{array} \qquad \begin{array}{c} \hspace{0.87em}\mathclap{\begin{array}{c}\LARGE\bigcirc\end{array}}\mathclap{14}\hspace{0.87em} \\[6pt] {\def\arraystretch{1.5}\begin{array}{cc} \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} \end{array}} \end{array}\] \(\textcolor{#808080}{\text{Для числа 12 подходит}}\) \(\textcolor{#808080}{\text{и пара 6 и}}\) \(\textcolor{#808080}{\text{6.}}\)
\[\begin{array}{cr} & \vphantom{\overset{\bullet}{0}}92 \\ \smash{\raisebox{0.62em}{$-$}} & 47 \\ \hline & 45 \end{array} \quad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{5}}6 \\ \smash{\raisebox{0.62em}{$-$}} & 29 \\ \hline & \textcolor{#e03131}{\mathbf{2}\kern-0.075em\mathbf{7}\kern-0.075em} \end{array} \quad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{7}}1 \\ \smash{\raisebox{0.62em}{$-$}} & 34 \\ \hline & \textcolor{#e03131}{\mathbf{3}\kern-0.075em\mathbf{7}\kern-0.075em} \end{array} \quad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{6}}3 \\ \smash{\raisebox{0.62em}{$-$}} & 18 \\ \hline & \textcolor{#e03131}{\mathbf{4}\kern-0.075em\mathbf{5}\kern-0.075em} \end{array} \quad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{8}}5 \\ \smash{\raisebox{0.62em}{$-$}} & 46 \\ \hline & \textcolor{#e03131}{\mathbf{3}\kern-0.075em\mathbf{9}\kern-0.075em} \end{array}\]
\(10 + 12 + 20 = \textcolor{#e03131}{\mathbf{42}}\text{ (я.)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{42}}\) яхты.
