Страница 35, ГДЗ по математике за 2 класс к проверочным работам Волковой. Серия "Школа России" к УМК Моро

\[\begin{aligned} c &= 5 & \qquad \qquad 25 - c = 25 - 5 &= \textcolor{#e03131}{\mathbf{20}} \\ c &= 10 & \qquad \qquad 25 - c = 25 - 10 &= \textcolor{#e03131}{\mathbf{15}} \\ c &= 20 & \qquad \qquad 25 - c = 25 - 20 &= \textcolor{#e03131}{\mathbf{5}} \end{aligned}\]

1) \[{\def\arraystretch{1.6}\begin{array}{lll} \textcolor{#e03131}{\underline{\boldsymbol{a - 9 = 8}\vphantom{(}}} & \qquad 12 - 7 > 4 & \qquad \textcolor{#e03131}{\underline{\boldsymbol{7 + k = 15}\vphantom{(}}} \\ 2 + 9 = 11 & \qquad c - 30 < 10 & \qquad a + 7 \end{array}}\] 2) Выпиши найденные уравнения и реши их. \[\begin{aligned} a - 9 &= 8 & \qquad 7 + k &= 15 \\ a &= 8 + 9 & \qquad k &= 15 - 7 \\ a &= \textcolor{#e03131}{\mathbf{17}} & \qquad k &= \textcolor{#e03131}{\mathbf{8}} \end{aligned}\]

\[\begin{aligned} 42 + 6 &= \textcolor{#e03131}{\mathbf{48}} & \qquad 78 - 7 &= \textcolor{#e03131}{\mathbf{71}} & \qquad 70 - 40 - 9 &= \textcolor{#e03131}{\mathbf{21}} \\ 31 + 9 &= \textcolor{#e03131}{\mathbf{40}} & \qquad 60 - 3 &= \textcolor{#e03131}{\mathbf{57}} & \qquad 48 - (13 - 5) &= \textcolor{#e03131}{\mathbf{40}} \\ 25 + 7 &= \textcolor{#e03131}{\mathbf{32}} & \qquad 54 - 6 &= \textcolor{#e03131}{\mathbf{48}} & \qquad 37 + 3 - 10 &= \textcolor{#e03131}{\mathbf{30}} \end{aligned}\]

\[\begin{aligned} \textcolor{#e03131}{\mathbf{9}} 8 - 4\textcolor{#e03131}{\mathbf{0}} &= 58 & \qquad 2\textcolor{#e03131}{\mathbf{0}} + \textcolor{#e03131}{\mathbf{4}} 7 &= 67 \end{aligned}\]