Страница 4, ГДЗ по математике за 2 класс к тренажёру Погореловой
Числа от 1 до 20
\[\begin{aligned} 16 - 7 &= \textcolor{#e03131}{\mathbf{9}} & \qquad 14 - 7 &= \textcolor{#e03131}{\mathbf{7}} & \qquad 13 - 7 &= \textcolor{#e03131}{\mathbf{6}} \\ 8 + 5 &= \textcolor{#e03131}{\mathbf{13}} & \qquad 9 + 4 &= \textcolor{#e03131}{\mathbf{13}} & \qquad 9 + 8 &= \textcolor{#e03131}{\mathbf{17}} \\ 12 - 3 &= \textcolor{#e03131}{\mathbf{9}} & \qquad 11 - 4 &= \textcolor{#e03131}{\mathbf{7}} & \qquad 12 - 4 &= \textcolor{#e03131}{\mathbf{8}} \\ 7 + 6 &= \textcolor{#e03131}{\mathbf{13}} & \qquad 9 + 7 &= \textcolor{#e03131}{\mathbf{16}} & \qquad 7 + 5 &= \textcolor{#e03131}{\mathbf{12}} \\ 14 - 9 &= \textcolor{#e03131}{\mathbf{5}} & \qquad 12 - 6 &= \textcolor{#e03131}{\mathbf{6}} & \qquad 15 - 8 &= \textcolor{#e03131}{\mathbf{7}} \\ 6 + 5 &= \textcolor{#e03131}{\mathbf{11}} & \qquad 8 + 4 &= \textcolor{#e03131}{\mathbf{12}} & \qquad 9 + 5 &= \textcolor{#e03131}{\mathbf{14}} \\ 11 - 3 &= \textcolor{#e03131}{\mathbf{8}} & \qquad 11 - 9 &= \textcolor{#e03131}{\mathbf{2}} & \qquad 12 - 5 &= \textcolor{#e03131}{\mathbf{7}} \\ 9 + 6 &= \textcolor{#e03131}{\mathbf{15}} & \qquad 8 + 7 &= \textcolor{#e03131}{\mathbf{15}} & \qquad 3 + 9 &= \textcolor{#e03131}{\mathbf{12}} \end{aligned}\]
\[\begin{aligned} 14 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 7 &= 7 & \qquad 15 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 8 &= 7 & \qquad 10 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 10 &= 20 \\ 8 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 6 &= 14 & \qquad 11 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 5 &= 6 & \qquad 16 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 7 &= 9 \\ 18 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 9 &= 9 & \qquad 9 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 3 &= 12 & \qquad 8 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 5 &= 13 \end{aligned}\]
\[\begin{aligned} 15 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 7}}}{-} 8 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 18 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 9}}}{-} 9 & \qquad 5 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 12}}}{+} 7 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 9 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 13}}}{+} 4 \\ 13 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 9}}}{-} 4 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{=}}}}\hspace{0.72em}} 11 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 9}}}{-} 2 & \qquad 6 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 12}}}{+} 6 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 8 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 13}}}{+} 5 \\ 16 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 9}}}{-} 7 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 14 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 8}}}{-} 6 & \qquad 9 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 16}}}{+} 7 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{=}}}}\hspace{0.72em}} 8 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 16}}}{+} 8 \end{aligned}\]
