Часть 2 страница 55, ГДЗ по математике за 2 класс к рабочей тетради Моро
Деление на 2
Закончи схематический рисунок и реши задачу.
\(1)\ 4 : 2 = \textcolor{#e03131}{\mathbf{2}}\text{ (кг)}\)
\(2)\ 2 \cdot 5 = \textcolor{#e03131}{\mathbf{10}}\text{ (кг)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{10}}\) кг.
2) Сколько потребуется пакетов, чтобы расфасовать таким же способом 18 кг муки?
\(18 : 2 = \textcolor{#e03131}{\mathbf{9}}\text{ (п.)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{9}}\) пакетов.
\[\begin{array}{lll} \boxed{14 : 7} \longrightarrow \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em} & \boxed{16 : 2} \longrightarrow \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} & \boxed{10 : 5} \longrightarrow \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em} \\[6pt] \boxed{18 : 2} \longrightarrow \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} & \boxed{8 : 4} \longrightarrow \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em} & \boxed{6 : 2} \longrightarrow \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} \\[6pt] \boxed{12 : 2} \longrightarrow \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} \end{array}\]
\[\begin{aligned} 73 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 7 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 6 &= 86 & \qquad 73 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 7 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 6 &= 60 \\ 73 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 7 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 6 &= 72 & \qquad 73 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 7 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 6 &= 74 \end{aligned}\] \(\textcolor{#808080}{\text{Подходят и: }{73 - (7 + 6) = 60}\text{,}}\) \(\textcolor{#808080}{{73 - (7 - 6) = 72}\text{.}}\)
\[\textcolor{#e03131}{\mathbf{11}}\ \textcolor{#e03131}{\textbf{и}}\ \textcolor{#e03131}{\mathbf{6}}\] \(\textcolor{#808080}{{11 + 6 = 17}\text{,}}\) \(\textcolor{#808080}{{11 - 6 = 5}\text{.}}\)
