Часть 2 страница 71, ГДЗ по математике за 2 класс к рабочей тетради Моро
Умножение и деление с числом 7
\[\begin{array}{lll} \boxed{7 \cdot 6} \longrightarrow \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em} & \boxed{7 \cdot 3} \longrightarrow \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em} & \boxed{7 \cdot 8} \longrightarrow \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} \\[6pt] \boxed{7 \cdot 5} \longrightarrow \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} & \boxed{7 \cdot 9} \longrightarrow \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} & \boxed{7 \cdot 4} \longrightarrow \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} \\[6pt] \boxed{7 \cdot 7} \longrightarrow \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} \end{array}\]
\[\begin{array}{|c|c|c|c|c|} \hline \rule[-0.52em]{0pt}{1.66em}\text{Уменьшаемое} & 43 & 50 & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} & 24 \\ \hline \rule[-0.52em]{0pt}{1.66em}\text{Вычитаемое} & 8 & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em} & 15 & 13 \\ \hline \rule[-0.52em]{0pt}{1.66em}\text{Разность} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} & 9 & 70 & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em} \\ \hline \end{array}\] \[\begin{array}{|c|c|c|c|} \hline \rule[-0.52em]{0pt}{1.66em}\text{Уменьшаемое} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} & 72 & 96 \\ \hline \rule[-0.52em]{0pt}{1.66em}\text{Вычитаемое} & 20 & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} & 16 \\ \hline \rule[-0.52em]{0pt}{1.66em}\text{Разность} & 38 & 12 & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} \\ \hline \end{array}\]
Вычисли значение каждого выражения и запиши, что оно означает.
\(3 \cdot 7 = \textcolor{#e03131}{\mathbf{21}}\text{ (чел.)}\) \(\textcolor{#e03131}{\textbf{— в первой}}\) \(\textcolor{#e03131}{\textbf{группе}}\)
\(4 \cdot 5 = \textcolor{#e03131}{\mathbf{20}}\text{ (чел.)}\) \(\textcolor{#e03131}{\textbf{— во второй}}\) \(\textcolor{#e03131}{\textbf{группе}}\)
\(3 \cdot 7 + 4 \cdot 5 = \textcolor{#e03131}{\mathbf{41}}\text{ (чел.)}\) \(\textcolor{#e03131}{\textbf{— в двух}}\) \(\textcolor{#e03131}{\textbf{группах}}\) \(\textcolor{#e03131}{\textbf{вместе}}\)
\(3 \cdot 7 - 4 \cdot 5 = \textcolor{#e03131}{\mathbf{1}}\text{ (чел.)}\) \(\textcolor{#e03131}{\textbf{— на столько}}\) \(\textcolor{#e03131}{\textbf{больше}}\) \(\textcolor{#e03131}{\textbf{в первой}}\) \(\textcolor{#e03131}{\textbf{группе,}}\) \(\textcolor{#e03131}{\textbf{чем}}\) \(\textcolor{#e03131}{\textbf{во второй}}\)
\[\begin{aligned} &6 \xrightarrow{\cdot\,9} \boxed{\smash[b]{\underset{\hspace{1.5em}}{\textcolor{#e03131}{\mathbf{54}}}}} \xrightarrow{-\,24} \boxed{\smash[b]{\underset{\hspace{1.5em}}{\textcolor{#e03131}{\mathbf{30}}}}} \xrightarrow{:\,5} \boxed{\smash[b]{\underset{\hspace{1.5em}}{\textcolor{#e03131}{\mathbf{6}}}}} \\[6pt] &\mathord{\xrightarrow{\cdot\,8}}\;\boxed{\smash[b]{\underset{\hspace{1.5em}}{\textcolor{#e03131}{\mathbf{48}}}}} \xrightarrow{-\,12} \boxed{\smash[b]{\underset{\hspace{1.5em}}{\textcolor{#e03131}{\mathbf{36}}}}} \xrightarrow{:\,9} \boxed{\smash[b]{\underset{\hspace{1.5em}}{\textcolor{#e03131}{\mathbf{4}}}}} \xrightarrow{\cdot\,7} 28 \end{aligned}\]
