Часть 1 страница 48, ГДЗ по математике за 2 класс к рабочей тетради Моро

\[\begin{array}{c} 11 \\ {\def\arraystretch{1.5}\begin{array}{cc} \boxed{\kern0.035em\mathbf{2}\kern0.035em} & \boxed{\kern0.035em\mathbf{9}\kern0.035em} \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} \end{array}} \end{array} \quad \begin{array}{c} 14 \\ {\def\arraystretch{1.5}\begin{array}{cc} \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} \end{array}} \end{array} \quad \begin{array}{c} 12 \\ {\def\arraystretch{1.5}\begin{array}{cc} \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} \end{array}} \end{array} \quad \begin{array}{c} 13 \\ {\def\arraystretch{1.5}\begin{array}{cc} \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} & \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} \end{array}} \end{array}\] \(\textcolor{#808080}{\text{Для числа 11 подходит}}\) \(\textcolor{#808080}{\text{и пара 5 и}}\) \(\textcolor{#808080}{\text{6.}}\)
\(\textcolor{#808080}{\text{Для числа 12 подходит}}\) \(\textcolor{#808080}{\text{и пара 6 и}}\) \(\textcolor{#808080}{\text{6.}}\)

\[\hspace{1.8em}\underset{\mathclap{\textstyle\begin{array}{c} \diagup\;\;\diagdown \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em}\quad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} \end{array}}}{43} + 7 = \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} \qquad\qquad\qquad \underset{\mathclap{\textstyle\begin{array}{c} \diagup\quad\diagdown \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em}\quad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} \end{array}}}{50} - 7 = \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em}\] \[\begin{aligned} 40 + (3 + \textcolor{#e03131}{\mathbf{7}}) &= \textcolor{#e03131}{\boldsymbol{40 + 10 = 50}} \\ 40 + (10 - \textcolor{#e03131}{\mathbf{7}}) &= \textcolor{#e03131}{\boldsymbol{40 + 3 = 43}} \end{aligned}\] 2) Вычисли значения выражений. \[\begin{aligned} 84 + 6 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} & \qquad 48 + 2 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} & \qquad 60 - 4 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} \\ 85 + 5 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} & \qquad 21 + 9 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} & \qquad 70 - 8 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em} \end{aligned}\]

1-й способ
\(1)\ 10 - 2 = \textcolor{#e03131}{\mathbf{8}}\text{ (м)}\)
\(2)\ 8 - 5 = \textcolor{#e03131}{\mathbf{3}}\text{ (м)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{3}}\) м.
2-й способ
\(1)\ 2 + 5 = \textcolor{#e03131}{\mathbf{7}}\text{ (м)}\)
\(2)\ 10 - 7 = \textcolor{#e03131}{\mathbf{3}}\text{ (м)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{3}}\) м.