Страница 7, ГДЗ по математике за 1 класс к тренажёру Погореловой
Сложение вида □ + 2
\[\begin{aligned} 5 + 1 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 7}}}{+} 1 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 6 & \qquad 4 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 6}}}{+} 2 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 7 \\ 7 + 1 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 9}}}{+} 1 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{=}}}}\hspace{0.72em}} 9 & \qquad 1 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 3}}}{+} 2 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{=}}}}\hspace{0.72em}} 3 \\ 2 + 1 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 4}}}{+} 1 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{=}}}}\hspace{0.72em}} 4 & \qquad 6 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 8}}}{+} 2 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 7 \\ 8 + 1 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 10}}}{+} 1 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 9 & \qquad 3 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 5}}}{+} 2 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{=}}}}\hspace{0.72em}} 5 \end{aligned}\]
\(\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em} + \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em} = \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em}\)
\[\begin{aligned} 4 + 2 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em}\ \longrightarrow & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} + 2 &= 8 \\ 2 + 2 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\ \longrightarrow & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em} + 2 &= 6 \\ 3 + 2 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em}\ \longrightarrow & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} + 2 &= 7 \\ 1 + 2 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em}\ \longrightarrow & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} + 2 &= 5 \end{aligned}\]
