Страница 36, ГДЗ по математике за 1 класс к тренажёру Погореловой
Вычисления вида □ + 5, □ − 5, □ + 6, □ − 6
\[\begin{aligned} 6 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 5 &= 1 & \qquad 8 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 3 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 2 &= 3 \\ 3 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 5 &= 8 & \qquad 1 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 2 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 4 &= 7 \\ 2 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 6 &= 8 & \qquad 9 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 3 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 3 &= 3 \\ 7 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 5 &= 2 & \qquad 10 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 5 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 1 &= 4 \\ 4 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 6 &= 10 & \qquad 4 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 2 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 3 &= 9 \end{aligned}\]
\[\begin{aligned} 7 - 5 + 6 &= \textcolor{#e03131}{\mathbf{8}} & \qquad 9 - 6 + 5 &= \textcolor{#e03131}{\mathbf{8}} \\ 4 + 6 - 5 &= \textcolor{#e03131}{\mathbf{5}} & \qquad 2 + 6 - 5 &= \textcolor{#e03131}{\mathbf{3}} \\ 3 + 6 - 5 &= \textcolor{#e03131}{\mathbf{4}} & \qquad 8 - 5 + 6 &= \textcolor{#e03131}{\mathbf{9}} \\ 2 + 5 - 6 &= \textcolor{#e03131}{\mathbf{1}} & \qquad 4 + 5 - 6 &= \textcolor{#e03131}{\mathbf{3}} \end{aligned}\]
\[\begin{aligned} 7 - 5 + \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} &= 8 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} - 6 + 5 &= 8 \end{aligned}\]
