Страница 25, ГДЗ по математике за 4 класс к самостоятельным и контрольным работам Лопатковой
Нумерация. Самостоятельная работа № 8. Вариант 2
\[\begin{array}{|c|} \hline 79\,345 \\ \hline 79\,346 \\ \hline 79\,347 \\ \hline \end{array} \qquad \begin{array}{|c|} \hline \textcolor{#e03131}{\mathbf{7\,482\,569}} \\ \hline 7\,482\,570 \\ \hline \textcolor{#e03131}{\mathbf{7\,482\,571}} \\ \hline \end{array} \qquad \begin{array}{|c|} \hline \textcolor{#e03131}{\mathbf{3\,679\,540}} \\ \hline 3\,679\,541 \\ \hline \textcolor{#e03131}{\mathbf{3\,679\,542}} \\ \hline \end{array}\] \[\begin{array}{|c|} \hline \textcolor{#e03131}{\mathbf{999\,998}} \\ \hline 999\,999 \\ \hline \textcolor{#e03131}{\mathbf{1\,000\,000}} \\ \hline \end{array} \qquad \begin{array}{|c|} \hline \textcolor{#e03131}{\mathbf{23\,406\,209}} \\ \hline 23\,406\,210 \\ \hline \textcolor{#e03131}{\mathbf{23\,406\,211}} \\ \hline \end{array} \qquad \begin{array}{|c|} \hline \textcolor{#e03131}{\mathbf{78\,098}} \\ \hline 78\,099 \\ \hline \textcolor{#e03131}{\mathbf{78\,100}} \\ \hline \end{array}\]
\[\begin{aligned} 3\,624\,279 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 3\,624\,280 & \qquad 803\,620 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 803\,621 \\ 2\,534\,201 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 2\,543\,201 & \qquad 2\,385\,765 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 2\,385\,756 \\ 673\,750 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 673\,749 & \qquad 3\,478\,342 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 3\,487\,342 \end{aligned}\]
\(1)\ P = 40 \cdot 3 = \textcolor{#e03131}{\mathbf{120}}\text{ (см)}\)
\(2)\ 120 : 4 = \textcolor{#e03131}{\mathbf{30}}\text{ (см)}\)
\(3)\ S = 30 \cdot 30 = \textcolor{#e03131}{\mathbf{900}}\text{ (см}^2\text{)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{900}}\) см².
