Страница 17, ГДЗ по математике за 1-4 класс к контрольным работам Волковой. Школа России
2 класс. Контрольная работа по теме «Таблица сложения однозначных чисел и соответствующие случаи вычитания». Вариант 4
\[\begin{aligned} &\begin{aligned} 1) & & 7 + 7 &= \textcolor{#e03131}{\mathbf{14}} & \quad 6 + 9 &= \textcolor{#e03131}{\mathbf{15}} & \quad 6 + 5 &= \textcolor{#e03131}{\mathbf{11}} & \quad 11 - 4 &= \textcolor{#e03131}{\mathbf{7}} \\ & & 4 + 9 &= \textcolor{#e03131}{\mathbf{13}} & \quad 9 + 8 &= \textcolor{#e03131}{\mathbf{17}} & \quad 3 + 9 &= \textcolor{#e03131}{\mathbf{12}} & \quad 15 - 9 &= \textcolor{#e03131}{\mathbf{6}} \end{aligned} \\[10pt] &\begin{aligned} 2) & & 12 - (11 - 4) &= \textcolor{#e03131}{\mathbf{5}} & \quad 7 + 5 - 4 &= \textcolor{#e03131}{\mathbf{8}} \end{aligned} \end{aligned}\]
2 класс. Контрольная работа по теме «Числа от 1 до 100. Нумерация». Вариант 1
1) \(\textcolor{#e03131}{\mathbf{44}}\textcolor{#e03131}{\mathbf{,}}\ \textcolor{#e03131}{\mathbf{13}}\textcolor{#e03131}{\mathbf{,}}\ \textcolor{#e03131}{\mathbf{31}}\)
2) \(77, 78, 79, \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{80}}\kern0.035em}, \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{81}}\kern0.035em}, 82.\)
\[\begin{aligned} 4 + 30 &= \textcolor{#e03131}{\mathbf{34}} & \qquad 29 + 1 &= \textcolor{#e03131}{\mathbf{30}} & \qquad 75 - 5 &= \textcolor{#e03131}{\mathbf{70}} \\ 83 - 80 &= \textcolor{#e03131}{\mathbf{3}} & \qquad 36 - 1 &= \textcolor{#e03131}{\mathbf{35}} & \qquad 98 + 1 &= \textcolor{#e03131}{\mathbf{99}} \end{aligned}\]
\[\begin{aligned} 54 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 45 & \qquad 78 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 88 & \qquad \overset{\textcolor{#808080}{\scriptstyle 50\text{ мм}}}{5\text{ см}} &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 15\text{ мм} \end{aligned}\]
\(8 - 5 = \textcolor{#e03131}{\mathbf{3}}\text{ (г.)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{3}}\) белые гвоздики.
\(\textcolor{#808080}{\text{1 дм = 10 см}}\)
\(10 - 3 = \textcolor{#e03131}{\mathbf{7}}\text{ (см)}\)
\[\begin{array}{l} {\mathrlap{\textcolor{#e03131}{\raisebox{0.305em}{\rule{10.09em}{0.09em}}}}\mathrlap{\textcolor{#e03131}{\raisebox{0em}{\rule{0.09em}{0.7em}}}}\hspace{10em}\mathrlap{\textcolor{#e03131}{\raisebox{0em}{\rule{0.09em}{0.7em}}}}\hspace{0.09em}}\hspace{0.6em}\textcolor{#e03131}{\textbf{1 дм}} \\[8pt] {\mathrlap{\textcolor{#e03131}{\raisebox{0.305em}{\rule{7.09em}{0.09em}}}}\mathrlap{\textcolor{#e03131}{\raisebox{0em}{\rule{0.09em}{0.7em}}}}\hspace{7em}\mathrlap{\textcolor{#e03131}{\raisebox{0em}{\rule{0.09em}{0.7em}}}}\hspace{0.09em}}\hspace{0.6em}\textcolor{#e03131}{\textbf{7 см}} \end{array}\]