Страница 60, ГДЗ по математике за 1-4 класс к контрольным работам Волковой. Школа России

\(1)\ 96 : 12 = \textcolor{#e03131}{\mathbf{8}}\text{ (кг)}\)
\(2)\ 8 \cdot 5 = \textcolor{#e03131}{\mathbf{40}}\text{ (кг)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{40}}\) кг.

\[\textcolor{#e03131}{\mathbf{50}}\ \textcolor{#e03131}{\textbf{и}}\ \textcolor{#e03131}{\mathbf{2}}\] \(\textcolor{#808080}{{{50 \cdot 2 = 100}}\text{, }{{50 - 2 = 48}}}\)

\[\textcolor{#e03131}{\mathbf{7\,000}} - 2 = \textcolor{#e03131}{\mathbf{6\,998}}\] \(\textcolor{#808080}{\text{Подходит и любое}}\) \(\textcolor{#808080}{\text{число от }{7\,001}}\) \(\textcolor{#808080}{\text{до }{7\,999}\text{.}}\)

\[\begin{aligned} &\begin{aligned} 1) & & 83\,709 - 3\,700 &= \textcolor{#e03131}{\mathbf{80\,009}} & \qquad 999\,979 + 1 &= \textcolor{#e03131}{\mathbf{999\,980}} \\ & & 19\,520 + 1\,000 &= \textcolor{#e03131}{\mathbf{20\,520}} & \qquad 1\,000\,000 - 1 &= \textcolor{#e03131}{\mathbf{999\,999}} \\ & & 675 \cdot 100 &= \textcolor{#e03131}{\mathbf{67\,500}} \\ & & 2\,400 : 10 &= \textcolor{#e03131}{\mathbf{240}} \end{aligned} \\[10pt] &\begin{aligned} 2) & & 790 \overset{\textcolor{#1a7f37}{2}}{-} (130 \overset{\textcolor{#1a7f37}{1}}{-} 70) &= \textcolor{#e03131}{\mathbf{730}} & \qquad (106 \mathbin{\overset{\textcolor{#1a7f37}{1}}{\vphantom{+}\cdot}} 4 \overset{\textcolor{#1a7f37}{2}}{+} 276) \mathrel{\overset{\textcolor{#1a7f37}{3}}{\vphantom{+}{:}}} 100 &= \textcolor{#e03131}{\mathbf{7}} \end{aligned} \end{aligned}\]

\[\begin{aligned} 6\,000\text{ м} &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em}\text{ км} & \qquad 4\text{ см}^2 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{400}}\kern0.035em}\text{ мм}^2 \\ 80\text{ см} &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{800}}\kern0.035em}\text{ мм} & \qquad 3\text{ м}^2 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{300}}\kern0.035em}\text{ дм}^2 \\ 9\,000\text{ кг} &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{90}}\kern0.035em}\text{ ц} \\ 7\text{ мин} &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{420}}\kern0.035em}\text{ с} \end{aligned}\]

\(1)\ 9 + 54 = \textcolor{#e03131}{\mathbf{63}}\text{ (г.)}\)
\(2)\ 63 : 9 = \textcolor{#e03131}{\mathbf{7}}\text{ (р.)}\)
Ответ: в \(\textcolor{#e03131}{\mathbf{7}}\) раз.

\[\textcolor{#e03131}{\boldsymbol{6 : 1 = 6}}\] \(\textcolor{#808080}{\text{Подходят и другие}}\) \(\textcolor{#808080}{\text{равенства с делителем}}\) \(\textcolor{#808080}{\text{1 или делимым 0,}}\) \(\textcolor{#808080}{\text{например }{{25 : 1 = 25}}\text{, }{{0 : 5 = 0}}\text{.}}\)

\[\textcolor{#e03131}{\mathbf{205\,000}} - 1 = \textcolor{#e03131}{\mathbf{204\,999}}\] \(\textcolor{#808080}{\text{Подходит и любое}}\) \(\textcolor{#808080}{\text{число от }{205\,001}}\) \(\textcolor{#808080}{\text{до }{205\,999}\text{.}}\)