Страница 4, ГДЗ по математике за 1 класс к тренажёру Погореловой

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Вычитание вида □ − 1

1. Реши примеры.

\[\begin{aligned} 3 - 1 &= \textcolor{#e03131}{\mathbf{2}} & \qquad 6 - 1 &= \textcolor{#e03131}{\mathbf{5}} & \qquad 8 - 1 &= \textcolor{#e03131}{\mathbf{7}} \\ 5 - 1 &= \textcolor{#e03131}{\mathbf{4}} & \qquad 2 - 1 &= \textcolor{#e03131}{\mathbf{1}} & \qquad 4 - 1 &= \textcolor{#e03131}{\mathbf{3}} \\ 9 - 1 &= \textcolor{#e03131}{\mathbf{8}} & \qquad 7 - 1 &= \textcolor{#e03131}{\mathbf{6}} & \qquad 10 - 1 &= \textcolor{#e03131}{\mathbf{9}} \end{aligned}\]

2. Вставь числа в «окошки».

\[\begin{aligned} \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em} - 1 &= 3 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} - 1 &= 4 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} - 1 &= 5 \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em} - 1 &= 1 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} - 1 &= 9 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} - 1 &= 8 \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} - 1 &= 6 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} - 1 &= 7 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} - 1 &= 2 \end{aligned}\]

3. Составь примеры на вычитание.

\[\begin{aligned} \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 1 &= 6 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 1 &= 7 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 1 &= 8 \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em} \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 1 &= 3 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em} \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 1 &= 1 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 1 &= 5 \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 1 &= 9 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 1 &= 4 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} \mathbin{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{-}}}}\hspace{0.72em}} 1 &= 2 \end{aligned}\]

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