Страница 47, ГДЗ по математике за 1-4 класс к контрольным работам Волковой. Школа России

\[\begin{aligned} &\begin{aligned} 1) & & 45 \cdot 2 &= \textcolor{#e03131}{\mathbf{90}} & \qquad 96 : 3 &= \textcolor{#e03131}{\mathbf{32}} & \qquad 85 : 17 &= \textcolor{#e03131}{\mathbf{5}} \\ & & 18 \cdot 4 &= \textcolor{#e03131}{\mathbf{72}} & \qquad 80 : 5 &= \textcolor{#e03131}{\mathbf{16}} & \qquad 58 : 29 &= \textcolor{#e03131}{\mathbf{2}} \end{aligned} \\[10pt] &\begin{aligned} 2) & & 48 \overset{\textcolor{#1a7f37}{3}}{-} 24 \mathrel{\overset{\textcolor{#1a7f37}{1}}{\vphantom{+}{:}}} 3 \mathbin{\overset{\textcolor{#1a7f37}{2}}{\vphantom{+}\cdot}} 5 &= \textcolor{#e03131}{\mathbf{8}} & \qquad 3 \mathbin{\overset{\textcolor{#1a7f37}{2}}{\vphantom{+}\cdot}} (11 \overset{\textcolor{#1a7f37}{1}}{+} 13) \mathrel{\overset{\textcolor{#1a7f37}{3}}{\vphantom{+}{:}}} 2 &= \textcolor{#e03131}{\mathbf{36}} \end{aligned} \end{aligned}\]

\[\begin{aligned} 51 : 20 &= \textcolor{#e03131}{\mathbf{2}}\ (\text{ост. }\textcolor{#e03131}{\mathbf{11}}) & \qquad 30 : 7 &= \textcolor{#e03131}{\mathbf{4}}\ (\text{ост. }\textcolor{#e03131}{\mathbf{2}}) \end{aligned}\]

\(1)\ 28 : 7 = \textcolor{#e03131}{\mathbf{4}}\text{ (м)}\)
\(2)\ 52 : 4 = \textcolor{#e03131}{\mathbf{13}}\text{ (к.)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{13}}\) костюмов.

\(1)\ 24 : 2 = \textcolor{#e03131}{\mathbf{12}}\text{ (гр.)}\)
\(2)\ 12 + 4 = \textcolor{#e03131}{\mathbf{16}}\text{ (гр.)}\)
\(3)\ 12 - 4 = \textcolor{#e03131}{\mathbf{8}}\text{ (гр.)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{16}}\) груш и \(\textcolor{#e03131}{\mathbf{8}}\) груш.