Часть 1 страница 54, ГДЗ по математике за 2 класс к рабочей тетради Моро

\[\begin{aligned} 5 + 7 - 9 &= \textcolor{#e03131}{\mathbf{3}} & \qquad 11 - 5 + 7 &= \textcolor{#e03131}{\mathbf{13}} & \qquad 5 + 0 &= \textcolor{#e03131}{\mathbf{5}} \\ 6 + 9 - 8 &= \textcolor{#e03131}{\mathbf{7}} & \qquad 16 - 8 + 5 &= \textcolor{#e03131}{\mathbf{13}} & \qquad 19 - 0 &= \textcolor{#e03131}{\mathbf{19}} \\ 8 + 6 - 5 &= \textcolor{#e03131}{\mathbf{9}} & \qquad 18 - 9 + 3 &= \textcolor{#e03131}{\mathbf{12}} & \qquad 50 + 0 &= \textcolor{#e03131}{\mathbf{50}} \\ 7 + 7 - 9 &= \textcolor{#e03131}{\mathbf{5}} & \qquad 17 - 8 + 6 &= \textcolor{#e03131}{\mathbf{15}} & \qquad 80 - 0 &= \textcolor{#e03131}{\mathbf{80}} \end{aligned}\]

\[\begin{aligned} 1 + 10 &= \textcolor{#e03131}{\mathbf{11}} & \qquad 18 - 9 &= \textcolor{#e03131}{\mathbf{9}} & \qquad 2 + 9 - 8 &= \textcolor{#e03131}{\mathbf{3}} \\ 2 + 9 &= \textcolor{#e03131}{\mathbf{11}} & \qquad 17 - 8 &= \textcolor{#e03131}{\mathbf{9}} & \qquad 3 + 8 - 7 &= \textcolor{#e03131}{\mathbf{4}} \\ 3 + 8 &= \textcolor{#e03131}{\mathbf{11}} & \qquad 16 - 7 &= \textcolor{#e03131}{\mathbf{9}} & \qquad 4 + 7 - 6 &= \textcolor{#e03131}{\mathbf{5}} \\ \textcolor{#e03131}{\boldsymbol{4 + 7}} &\textcolor{#e03131}{\boldsymbol{= 11}} & \qquad \textcolor{#e03131}{\boldsymbol{15 - 6}} &\textcolor{#e03131}{\boldsymbol{= 9}} & \qquad \textcolor{#e03131}{\boldsymbol{5 + 6 - 5}} &\textcolor{#e03131}{\boldsymbol{= 6}} \\ \textcolor{#e03131}{\boldsymbol{5 + 6}} &\textcolor{#e03131}{\boldsymbol{= 11}} & \qquad \textcolor{#e03131}{\boldsymbol{14 - 5}} &\textcolor{#e03131}{\boldsymbol{= 9}} & \qquad \textcolor{#e03131}{\boldsymbol{6 + 5 - 4}} &\textcolor{#e03131}{\boldsymbol{= 7}} \end{aligned}\] \(\textcolor{#808080}{\text{Первое слагаемое увеличивается}}\) \(\textcolor{#808080}{\text{на 1, второе}}\) \(\textcolor{#808080}{\text{уменьшается на 1 —}}\) \(\textcolor{#808080}{\text{сумма та же.}}\)
\(\textcolor{#808080}{\text{Уменьшаемое и вычитаемое}}\) \(\textcolor{#808080}{\text{уменьшаются на 1 —}}\) \(\textcolor{#808080}{\text{разность та же.}}\)
\(\textcolor{#808080}{\text{Первое число увеличивается}}\) \(\textcolor{#808080}{\text{на 1, второе}}\) \(\textcolor{#808080}{\text{и третье уменьшаются}}\) \(\textcolor{#808080}{\text{на 1 — значение}}\) \(\textcolor{#808080}{\text{увеличивается на 1.}}\)

\[\begin{aligned} 30 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 20}}}{-} 10 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 40 & \qquad 50 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 55}}}{+} 5 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 60 & \qquad 70 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 60}}}{-} 10 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 50 \\ 20 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 100}}}{+} 80 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{=}}}}\hspace{0.72em}} 100 & \qquad 40 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 47}}}{+} 7 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 70 & \qquad 80 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 71}}}{-} 9 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 70 \end{aligned}\]

\[\begin{aligned} 70 - 30 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} & \qquad 20 + 60 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} & \qquad 80 - 50 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} \\ 40 + 40 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} & \qquad 90 - 70 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} & \qquad 10 + 20 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} \end{aligned}\]