Страница 11, ГДЗ по математике за 3 класс к проверочным работам Волковой. Серия "Школа России" к УМК Моро
Умножение и деление (продолжение). Проверочная работа. Вариант 2
\[\begin{aligned} 3 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 12}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 4 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 3 + 3 + 4 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 13}}}{+} 3 & \qquad 6 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 30}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 5 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 6 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 11}}}{+} 5 \\ 7 + 7 + 7 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 28}}}{+} 7 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{=}}}}\hspace{0.72em}} 7 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 28}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 4 & \qquad 10 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 80}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 8 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 18 \\ 1 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 36}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 36 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 36 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 35}}}{-} 1 & \qquad 0 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 0}}\rule[-0.35em]{0pt}{0.35em}}{\cdot} 100 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 99 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 100}}}{+} 1 \end{aligned}\]
\[\begin{aligned} 2 \cdot 8 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} & \qquad 12 : 2 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} & \qquad 92 \overset{\textcolor{#1a7f37}{1}}{-} 70 \overset{\textcolor{#1a7f37}{2}}{+} 17 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} \\ 5 \cdot 2 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} & \qquad 18 : 9 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em} & \qquad 83 \overset{\textcolor{#1a7f37}{2}}{-} (37 \overset{\textcolor{#1a7f37}{1}}{+} 6) &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} \end{aligned}\]
\(8 : 2 = \textcolor{#e03131}{\mathbf{4}}\text{ (м.)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{4}}\) мелка.
\(P = 2 + 2 + 2 + 2 + 2 = \textcolor{#e03131}{\mathbf{10}}\text{ (см)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{10}}\) см.
\[\begin{aligned} 63 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 20 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 7 &= 50 & \qquad 25 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}}\hspace{0.72em}} 15 \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 10 &= 30 \end{aligned}\]
