Часть 1 страница 65, ГДЗ по математике за 2 класс к рабочей тетради Моро
43 − 7
\(3 + 3 + 3 = \textcolor{#e03131}{\mathbf{9}}\text{ (см)}\)
\(3 + 3 + 3 + 3 = \textcolor{#e03131}{\mathbf{12}}\text{ (см)}\)
\(12\text{ см} \mathrel{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}} 9\text{ см}\)
Сколько осей симметрии у квадрата? \(\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\)
\(1)\ 8 + 7 = \textcolor{#e03131}{\mathbf{15}}\text{ (п.)}\)
\(2)\ 8 + 15 = \textcolor{#e03131}{\mathbf{23}}\text{ (п.)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{23}}\) попугая.
\[\begin{aligned} 8 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}} (5 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}} 2) &= 1 & \qquad 40 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}} 25 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}} 5 &= 20 \\ 16 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}} (3 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}} 4) &= 9 & \qquad 65 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}} 10 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}} 30 &= 45 \\ 13 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}} (9 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}} 2) &= 6 & \qquad 50 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{+}}}} 43 \mathbin{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}} 10 &= 83 \end{aligned}\]
