Страница 43, ГДЗ по математике за 2 класс к тренажёру Погореловой
Умножение и деление на 2
\[2 \quad 4 \quad \textcolor{#e03131}{\mathbf{6}} \quad \textcolor{#e03131}{\mathbf{8}} \quad \textcolor{#e03131}{\mathbf{10}} \quad \textcolor{#e03131}{\mathbf{12}} \quad \textcolor{#e03131}{\mathbf{14}} \quad \textcolor{#e03131}{\mathbf{16}} \quad \textcolor{#e03131}{\mathbf{18}} \quad 20\] \[20 \quad 18 \quad \textcolor{#e03131}{\mathbf{16}} \quad \textcolor{#e03131}{\mathbf{14}} \quad \textcolor{#e03131}{\mathbf{12}} \quad \textcolor{#e03131}{\mathbf{10}} \quad \textcolor{#e03131}{\mathbf{8}} \quad \textcolor{#e03131}{\mathbf{6}} \quad \textcolor{#e03131}{\mathbf{4}} \quad 2\]
\[\begin{aligned} 2 + 2 + 2 + 2 &= \textcolor{#e03131}{\mathbf{2}} \textcolor{#e03131}{\cdot} \textcolor{#e03131}{\mathbf{4}} = \textcolor{#e03131}{\mathbf{8}} \\ 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 &= \textcolor{#e03131}{\mathbf{2}} \textcolor{#e03131}{\cdot} \textcolor{#e03131}{\mathbf{8}} = \textcolor{#e03131}{\mathbf{16}} \\ 2 + 2 + 2 + 2 + 2 + 2 &= \textcolor{#e03131}{\mathbf{2}} \textcolor{#e03131}{\cdot} \textcolor{#e03131}{\mathbf{6}} = \textcolor{#e03131}{\mathbf{12}} \end{aligned}\]
\[\begin{aligned} 2 \cdot 4 &= \textcolor{#e03131}{\mathbf{8}} & \qquad 5 \cdot 2 &= \textcolor{#e03131}{\mathbf{10}} & \qquad 2 \cdot 6 &= \textcolor{#e03131}{\mathbf{12}} \\ 7 \cdot 2 &= \textcolor{#e03131}{\mathbf{14}} & \qquad 2 \cdot 9 &= \textcolor{#e03131}{\mathbf{18}} & \qquad 8 \cdot 2 &= \textcolor{#e03131}{\mathbf{16}} \\ 2 \cdot 2 &= \textcolor{#e03131}{\mathbf{4}} & \qquad 2 \cdot 3 &= \textcolor{#e03131}{\mathbf{6}} & \qquad 2 \cdot 1 &= \textcolor{#e03131}{\mathbf{2}} \end{aligned}\]
\[\begin{aligned} 16 : 2 &= \textcolor{#e03131}{\mathbf{8}} & \qquad 8 : 2 &= \textcolor{#e03131}{\mathbf{4}} & \qquad 2 : 2 &= \textcolor{#e03131}{\mathbf{1}} \\ 10 : 2 &= \textcolor{#e03131}{\mathbf{5}} & \qquad 4 : 2 &= \textcolor{#e03131}{\mathbf{2}} & \qquad 18 : 2 &= \textcolor{#e03131}{\mathbf{9}} \\ 14 : 2 &= \textcolor{#e03131}{\mathbf{7}} & \qquad 6 : 2 &= \textcolor{#e03131}{\mathbf{3}} & \qquad 12 : 2 &= \textcolor{#e03131}{\mathbf{6}} \end{aligned}\]
