Страница 49, ГДЗ по математике за 2 класс к тренажёру Погореловой
Умножение и деление на 5
\[5 \quad 10 \quad \textcolor{#e03131}{\mathbf{15}} \quad \textcolor{#e03131}{\mathbf{20}} \quad \textcolor{#e03131}{\mathbf{25}} \quad \textcolor{#e03131}{\mathbf{30}} \quad \textcolor{#e03131}{\mathbf{35}} \quad \textcolor{#e03131}{\mathbf{40}} \quad \textcolor{#e03131}{\mathbf{45}} \quad 50\] \[50 \quad 45 \quad \textcolor{#e03131}{\mathbf{40}} \quad \textcolor{#e03131}{\mathbf{35}} \quad \textcolor{#e03131}{\mathbf{30}} \quad \textcolor{#e03131}{\mathbf{25}} \quad \textcolor{#e03131}{\mathbf{20}} \quad \textcolor{#e03131}{\mathbf{15}} \quad \textcolor{#e03131}{\mathbf{10}} \quad 5\]
\[\begin{aligned} 5 + 5 + 5 + 5 &= \textcolor{#e03131}{\mathbf{5}} \textcolor{#e03131}{\cdot} \textcolor{#e03131}{\mathbf{4}} = \textcolor{#e03131}{\mathbf{20}} \\ 5 + 5 + 5 + 5 + 5 + 5 + 5 &= \textcolor{#e03131}{\mathbf{5}} \textcolor{#e03131}{\cdot} \textcolor{#e03131}{\mathbf{7}} = \textcolor{#e03131}{\mathbf{35}} \\ 5 + 5 + 5 &= \textcolor{#e03131}{\mathbf{5}} \textcolor{#e03131}{\cdot} \textcolor{#e03131}{\mathbf{3}} = \textcolor{#e03131}{\mathbf{15}} \end{aligned}\]
\[\begin{aligned} 5 \cdot 3 &= \textcolor{#e03131}{\mathbf{15}} & \qquad 5 \cdot 9 &= \textcolor{#e03131}{\mathbf{45}} & \qquad 5 \cdot 5 &= \textcolor{#e03131}{\mathbf{25}} \\ 5 \cdot 8 &= \textcolor{#e03131}{\mathbf{40}} & \qquad 5 \cdot 1 &= \textcolor{#e03131}{\mathbf{5}} & \qquad 5 \cdot 2 &= \textcolor{#e03131}{\mathbf{10}} \\ 5 \cdot 6 &= \textcolor{#e03131}{\mathbf{30}} & \qquad 5 \cdot 4 &= \textcolor{#e03131}{\mathbf{20}} & \qquad 5 \cdot 7 &= \textcolor{#e03131}{\mathbf{35}} \end{aligned}\]
\[\begin{aligned} 15 : 5 &= \textcolor{#e03131}{\mathbf{3}} & \qquad 30 : 5 &= \textcolor{#e03131}{\mathbf{6}} & \qquad 40 : 5 &= \textcolor{#e03131}{\mathbf{8}} \\ 5 : 5 &= \textcolor{#e03131}{\mathbf{1}} & \qquad 45 : 5 &= \textcolor{#e03131}{\mathbf{9}} & \qquad 25 : 5 &= \textcolor{#e03131}{\mathbf{5}} \\ 35 : 5 &= \textcolor{#e03131}{\mathbf{7}} & \qquad 20 : 5 &= \textcolor{#e03131}{\mathbf{4}} & \qquad 10 : 5 &= \textcolor{#e03131}{\mathbf{2}} \end{aligned}\]
