2класс

Страница 46, ГДЗ по математике за 2 класс к тренажёру Погореловой

Выберите номер:
5 6

Умножение и деление на 3

5. Вставь пропущенные числа.

\[\begin{aligned} 3 \cdot \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em} &= 12 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em} \cdot 3 &= 6 & \qquad 18 : \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} &= 3 \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em} : 3 &= 7 & \qquad 3 \cdot \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em} &= 3 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} \cdot 3 &= 9 \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} : 3 &= 3 & \qquad 6 : \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} &= 2 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} \cdot 3 &= 27 \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em} : 3 &= 8 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} : 3 &= 5 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} \cdot 3 &= 15 \\ 3 \cdot \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} &= 24 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} \cdot 3 &= 18 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} : 3 &= 10 \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} \cdot 3 &= 21 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} : 3 &= 9 & \qquad 12 : \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} &= 4 \\ 3 : \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} &= 1 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} \cdot 3 &= 24 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} \cdot 3 &= 30 \end{aligned}\]

6. Вычисли значения выражений.

\[\begin{aligned} 3 \cdot 3 &= \textcolor{#e03131}{\mathbf{9}} & \qquad 5 \cdot 3 &= \textcolor{#e03131}{\mathbf{15}} \\ 15 : 3 &= \textcolor{#e03131}{\mathbf{5}} & \qquad 24 : 3 &= \textcolor{#e03131}{\mathbf{8}} \\ 9 \cdot 3 &= \textcolor{#e03131}{\mathbf{27}} & \qquad 6 : 3 &= \textcolor{#e03131}{\mathbf{2}} \\ 4 \cdot 3 &= \textcolor{#e03131}{\mathbf{12}} & \qquad 3 \cdot 8 &= \textcolor{#e03131}{\mathbf{24}} \\ 27 : 3 &= \textcolor{#e03131}{\mathbf{9}} & \qquad 18 : 3 &= \textcolor{#e03131}{\mathbf{6}} \\ 3 \cdot 1 &= \textcolor{#e03131}{\mathbf{3}} & \qquad 9 : 3 &= \textcolor{#e03131}{\mathbf{3}} \\ 21 : 3 &= \textcolor{#e03131}{\mathbf{7}} & \qquad 7 \cdot 3 &= \textcolor{#e03131}{\mathbf{21}} \\ 6 \cdot 3 &= \textcolor{#e03131}{\mathbf{18}} & \qquad 30 : 3 &= \textcolor{#e03131}{\mathbf{10}} \\ 3 : 3 &= \textcolor{#e03131}{\mathbf{1}} & \qquad 12 : 3 &= \textcolor{#e03131}{\mathbf{4}} \\ 3 \cdot 2 &= \textcolor{#e03131}{\mathbf{6}} & \qquad 10 \cdot 3 &= \textcolor{#e03131}{\mathbf{30}} \end{aligned}\]

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