Часть 1 страница 71, ГДЗ по математике за 2 класс к рабочей тетради Моро

\[\begin{aligned} 16 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}} 9 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}} 5 &= 12 & \qquad 74 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}} 20 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}} 6 &= 60 \\ 3 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}} 8 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}} 9 &= 20 & \qquad 60 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}} 27 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}} 3 &= 90 \\ 12 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}} 3 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}} 7 &= 16 & \qquad 57 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}} 7 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}} 10 &= 40 \end{aligned}\]

\[\begin{aligned} 38 + 4 &= \textcolor{#e03131}{\mathbf{42}} & \qquad 32 - 8 &= \textcolor{#e03131}{\mathbf{24}} & \qquad 63 + 7 &= \textcolor{#e03131}{\mathbf{70}} \\ 17 + 9 &= \textcolor{#e03131}{\mathbf{26}} & \qquad 23 - 6 &= \textcolor{#e03131}{\mathbf{17}} & \qquad 41 + 9 &= \textcolor{#e03131}{\mathbf{50}} \\ 35 + 8 &= \textcolor{#e03131}{\mathbf{43}} & \qquad 44 - 9 &= \textcolor{#e03131}{\mathbf{35}} & \qquad 60 - 5 &= \textcolor{#e03131}{\mathbf{55}} \\ 58 + 7 &= \textcolor{#e03131}{\mathbf{65}} & \qquad 63 - 5 &= \textcolor{#e03131}{\mathbf{58}} & \qquad 80 - 8 &= \textcolor{#e03131}{\mathbf{72}} \end{aligned}\] Проверь решение всех примеров на сложение. \[\begin{aligned} \textcolor{#e03131}{\boldsymbol{42 - 4}} &\mathrel{\textcolor{#e03131}{\boldsymbol{=}}} \textcolor{#e03131}{\boldsymbol{38}} & \qquad \textcolor{#e03131}{\boldsymbol{26 - 9}} &\mathrel{\textcolor{#e03131}{\boldsymbol{=}}} \textcolor{#e03131}{\boldsymbol{17}} & \qquad \textcolor{#e03131}{\boldsymbol{43 - 8}} &\mathrel{\textcolor{#e03131}{\boldsymbol{=}}} \textcolor{#e03131}{\boldsymbol{35}} \\ \textcolor{#e03131}{\boldsymbol{65 - 7}} &\mathrel{\textcolor{#e03131}{\boldsymbol{=}}} \textcolor{#e03131}{\boldsymbol{58}} & \qquad \textcolor{#e03131}{\boldsymbol{70 - 7}} &\mathrel{\textcolor{#e03131}{\boldsymbol{=}}} \textcolor{#e03131}{\boldsymbol{63}} & \qquad \textcolor{#e03131}{\boldsymbol{50 - 9}} &\mathrel{\textcolor{#e03131}{\boldsymbol{=}}} \textcolor{#e03131}{\boldsymbol{41}} \end{aligned}\]

\(15 - 9 = \textcolor{#e03131}{\mathbf{6}}\text{ (л.)}\)
Ответ: на \(\textcolor{#e03131}{\mathbf{6}}\) лет.