Страница 42, ГДЗ по математике за 1 класс к тренажёру Погореловой
Сложение и вычитание вида □ + 0, □ − 0
\[\begin{aligned} 7 + 0 &= \textcolor{#e03131}{\mathbf{7}} & \qquad 5 - 0 &= \textcolor{#e03131}{\mathbf{5}} & \qquad 2 + 0 &= \textcolor{#e03131}{\mathbf{2}} \\ 1 - 0 &= \textcolor{#e03131}{\mathbf{1}} & \qquad 6 + 0 &= \textcolor{#e03131}{\mathbf{6}} & \qquad 8 - 0 &= \textcolor{#e03131}{\mathbf{8}} \\ 4 + 0 &= \textcolor{#e03131}{\mathbf{4}} & \qquad 2 - 0 &= \textcolor{#e03131}{\mathbf{2}} & \qquad 3 - 0 &= \textcolor{#e03131}{\mathbf{3}} \end{aligned}\]
\[\begin{aligned} \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} - 0 &= 3 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} + 0 &= 8 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} + 0 &= 7 \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} + 0 &= 6 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em} - 0 &= 2 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em} - 0 &= 1 \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em} - 0 &= 4 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} + 0 &= 10 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} + 0 &= 9 \end{aligned}\]
\[\begin{aligned} 7 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 7}}}{-} 0 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 6 & \qquad 0 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 3}}}{+} 3 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 4 & \qquad 4 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 4}}}{+} 0 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 3 \\ 0 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 8}}}{+} 8 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 9 & \qquad 2 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 2}}}{+} 0 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 4 & \qquad 0 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 5}}}{+} 5 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{=}}}}\hspace{0.72em}} 5 \\ 9 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 9}}}{-} 0 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 7 & \qquad 0 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 1}}}{+} 1 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{=}}}}\hspace{0.72em}} 1 & \qquad 8 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 8}}}{-} 0 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 7 \end{aligned}\]
