Часть 2 страница 27, ГДЗ по математике за 2 класс к рабочей тетради Моро
Название чисел при умножении
\[\begin{aligned} 6 &= 2 + \textcolor{#e03131}{\boldsymbol{2 + 2}} & \qquad 18 &= 6 + 6 + \textcolor{#e03131}{\boldsymbol{6}} \\ 9 &= 3 + \textcolor{#e03131}{\boldsymbol{3 + 3}} & \qquad 16 &= 4 + \textcolor{#e03131}{\boldsymbol{4 + 4 + 4}} \\ 15 &= 5 + \textcolor{#e03131}{\boldsymbol{5 + 5}} & \qquad 14 &= 7 + \textcolor{#e03131}{\boldsymbol{7}} \\ 12 &= 6 + \textcolor{#e03131}{\boldsymbol{6}} & \qquad 20 &= 5 + \textcolor{#e03131}{\boldsymbol{5 + 5 + 5}} \end{aligned}\]
\[\begin{array}{|c|c|c|c|c|} \hline c & 9 & 18 & 23 & 40 \\ \hline c + 8 & \textcolor{#e03131}{\mathbf{17}} & \textcolor{#e03131}{\mathbf{26}} & \textcolor{#e03131}{\mathbf{31}} & \textcolor{#e03131}{\mathbf{48}} \\ \hline \end{array} \qquad \begin{array}{|c|c|c|c|c|} \hline k & 16 & 13 & 22 & 50 \\ \hline k - 7 & \textcolor{#e03131}{\mathbf{9}} & \textcolor{#e03131}{\mathbf{6}} & \textcolor{#e03131}{\mathbf{15}} & \textcolor{#e03131}{\mathbf{43}} \\ \hline \end{array}\]
\[\begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{2}}9 \\ \smash{\raisebox{0.62em}{$+$}} & 48 \\ \hline & \textcolor{#e03131}{\mathbf{7}\kern-0.075em\mathbf{7}\kern-0.075em} \end{array} \quad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{7}}4 \\ \smash{\raisebox{0.62em}{$-$}} & 25 \\ \hline & \textcolor{#e03131}{\mathbf{4}\kern-0.075em\mathbf{9}\kern-0.075em} \end{array} \quad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{3}}6 \\ \smash{\raisebox{0.62em}{$+$}} & 57 \\ \hline & \textcolor{#e03131}{\mathbf{9}\kern-0.075em\mathbf{3}\kern-0.075em} \end{array} \quad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{8}}1 \\ \smash{\raisebox{0.62em}{$-$}} & 39 \\ \hline & \textcolor{#e03131}{\mathbf{4}\kern-0.075em\mathbf{2}\kern-0.075em} \end{array} \quad \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{7}}2 \\ \smash{\raisebox{0.62em}{$-$}} & 63 \\ \hline & \textcolor{#e03131}{\mathbf{9}\kern-0.075em} \end{array}\]
\(1)\ 13 - 5 = \textcolor{#e03131}{\mathbf{8}}\text{ (кн.)}\)
\(2)\ 13 - 7 = \textcolor{#e03131}{\mathbf{6}}\text{ (кн.)}\)
Ответ: на верхней полке было \(\textcolor{#e03131}{\mathbf{8}}\) книг, на нижней — \(\textcolor{#e03131}{\mathbf{6}}\) книг.
