Страница 21, ГДЗ по математике за 3 класс к тренажёру Погореловой
Умножение и деление на 8 и 9
\[\begin{aligned} 5 \cdot 8 &= \textcolor{#e03131}{\mathbf{40}} & \qquad 9 \cdot 9 &= \textcolor{#e03131}{\mathbf{81}} & \qquad 36 : 9 &= \textcolor{#e03131}{\mathbf{4}} \\ 63 : 9 &= \textcolor{#e03131}{\mathbf{7}} & \qquad 32 : 8 &= \textcolor{#e03131}{\mathbf{4}} & \qquad 8 \cdot 6 &= \textcolor{#e03131}{\mathbf{48}} \\ 9 \cdot 6 &= \textcolor{#e03131}{\mathbf{54}} & \qquad 9 \cdot 7 &= \textcolor{#e03131}{\mathbf{63}} & \qquad 64 : 8 &= \textcolor{#e03131}{\mathbf{8}} \\ 40 : 8 &= \textcolor{#e03131}{\mathbf{5}} & \qquad 48 : 8 &= \textcolor{#e03131}{\mathbf{6}} & \qquad 9 \cdot 4 &= \textcolor{#e03131}{\mathbf{36}} \\ 4 \cdot 8 &= \textcolor{#e03131}{\mathbf{32}} & \qquad 8 \cdot 3 &= \textcolor{#e03131}{\mathbf{24}} & \qquad 54 : 9 &= \textcolor{#e03131}{\mathbf{6}} \\ 56 : 8 &= \textcolor{#e03131}{\mathbf{7}} & \qquad 18 : 9 &= \textcolor{#e03131}{\mathbf{2}} & \qquad 7 \cdot 8 &= \textcolor{#e03131}{\mathbf{56}} \\ 8 \cdot 9 &= \textcolor{#e03131}{\mathbf{72}} & \qquad 8 \cdot 8 &= \textcolor{#e03131}{\mathbf{64}} & \qquad 72 : 8 &= \textcolor{#e03131}{\mathbf{9}} \\ 16 : 8 &= \textcolor{#e03131}{\mathbf{2}} & \qquad 27 : 9 &= \textcolor{#e03131}{\mathbf{3}} & \qquad 3 \cdot 9 &= \textcolor{#e03131}{\mathbf{27}} \\ 72 : 9 &= \textcolor{#e03131}{\mathbf{8}} & \qquad 9 \cdot 5 &= \textcolor{#e03131}{\mathbf{45}} & \qquad 45 : 9 &= \textcolor{#e03131}{\mathbf{5}} \end{aligned}\]
\[\begin{aligned} 27 : 3 \cdot 8 &= \textcolor{#e03131}{\mathbf{72}} & \qquad 18 : 2 \cdot 9 &= \textcolor{#e03131}{\mathbf{81}} \\ 72 : 8 \cdot 7 &= \textcolor{#e03131}{\mathbf{63}} & \qquad 56 : 8 \cdot 7 &= \textcolor{#e03131}{\mathbf{49}} \\ 63 : 9 \cdot 4 &= \textcolor{#e03131}{\mathbf{28}} & \qquad 40 : 5 \cdot 8 &= \textcolor{#e03131}{\mathbf{64}} \\ 45 : 9 \cdot 8 &= \textcolor{#e03131}{\mathbf{40}} & \qquad 27 : 9 \cdot 8 &= \textcolor{#e03131}{\mathbf{24}} \end{aligned}\]
\[\begin{aligned} 8 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 56}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 7 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 9 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 54}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 6 & \qquad 4 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 32}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 8 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 9 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 27}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 3 & \qquad 8 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 48}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 6 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 9 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 63}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 7 \\ 4 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 36}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 9 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 5 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 40}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 8 & \qquad 9 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 45}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 5 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 6 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 48}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 8 & \qquad 8 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 72}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 9 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{=}}}}\hspace{0.72em}} 9 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 72}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 8 \end{aligned}\]



