3класс

Страница 27, ГДЗ по математике за 3 класс к тренажёру Погореловой

Выберите номер:
7 8

Повторение. Таблица умножения

7. Вставь пропущенные числа.

\[\begin{aligned} 7 \cdot \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} &= 56 & \qquad 64 : \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} &= 8 & \qquad 20 : \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} &= 4 \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} : 5 &= 8 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} \cdot 7 &= 70 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em} \cdot 6 &= 6 \\ 3 \cdot \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} &= 24 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} : 9 &= 4 & \qquad 48 : \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} &= 8 \\ 63 : \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} &= 9 & \qquad 2 \cdot \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} &= 14 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} \cdot 9 &= 81 \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} \cdot 6 &= 36 & \qquad 45 : \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} &= 5 & \qquad 10 \cdot \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} &= 0 \\ 18 : \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} &= 2 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} \cdot 3 &= 27 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} : 7 &= 5 \\ 6 \cdot \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} &= 42 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} : 4 &= 7 & \qquad 4 \cdot \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} &= 28 \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em} : 8 &= 9 & \qquad 18 : \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} &= 3 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em} \cdot 8 &= 16 \\ 5 \cdot \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} &= 30 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} \cdot 4 &= 32 & \qquad 7 \cdot \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em} &= 7 \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} \cdot 1 &= 8 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} : 7 &= 10 & \qquad \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} : 9 &= 0 \end{aligned}\]

8. Заполни таблицу.

\[\begin{array}{|c|c|c|c|c|c|c|c|c|} \hline 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 \\ \hline 2 & \textcolor{#e03131}{\mathbf{4}} & 6 & \textcolor{#e03131}{\mathbf{8}} & \textcolor{#e03131}{\mathbf{10}} & \textcolor{#e03131}{\mathbf{12}} & 14 & \textcolor{#e03131}{\mathbf{16}} & \textcolor{#e03131}{\mathbf{18}} \\ \hline 3 & \textcolor{#e03131}{\mathbf{6}} & \textcolor{#e03131}{\mathbf{9}} & \textcolor{#e03131}{\mathbf{12}} & 15 & \textcolor{#e03131}{\mathbf{18}} & \textcolor{#e03131}{\mathbf{21}} & \textcolor{#e03131}{\mathbf{24}} & 27 \\ \hline 4 & \textcolor{#e03131}{\mathbf{8}} & 12 & \textcolor{#e03131}{\mathbf{16}} & \textcolor{#e03131}{\mathbf{20}} & \textcolor{#e03131}{\mathbf{24}} & 28 & \textcolor{#e03131}{\mathbf{32}} & \textcolor{#e03131}{\mathbf{36}} \\ \hline 5 & \textcolor{#e03131}{\mathbf{10}} & \textcolor{#e03131}{\mathbf{15}} & \textcolor{#e03131}{\mathbf{20}} & 25 & \textcolor{#e03131}{\mathbf{30}} & \textcolor{#e03131}{\mathbf{35}} & 40 & \textcolor{#e03131}{\mathbf{45}} \\ \hline 6 & 12 & \textcolor{#e03131}{\mathbf{18}} & 24 & \textcolor{#e03131}{\mathbf{30}} & \textcolor{#e03131}{\mathbf{36}} & \textcolor{#e03131}{\mathbf{42}} & \textcolor{#e03131}{\mathbf{48}} & \textcolor{#e03131}{\mathbf{54}} \\ \hline 7 & \textcolor{#e03131}{\mathbf{14}} & 21 & \textcolor{#e03131}{\mathbf{28}} & \textcolor{#e03131}{\mathbf{35}} & \textcolor{#e03131}{\mathbf{42}} & 49 & \textcolor{#e03131}{\mathbf{56}} & \textcolor{#e03131}{\mathbf{63}} \\ \hline 8 & \textcolor{#e03131}{\mathbf{16}} & \textcolor{#e03131}{\mathbf{24}} & \textcolor{#e03131}{\mathbf{32}} & 40 & \textcolor{#e03131}{\mathbf{48}} & \textcolor{#e03131}{\mathbf{56}} & \textcolor{#e03131}{\mathbf{64}} & 72 \\ \hline 9 & \textcolor{#e03131}{\mathbf{18}} & \textcolor{#e03131}{\mathbf{27}} & 36 & \textcolor{#e03131}{\mathbf{45}} & \textcolor{#e03131}{\mathbf{54}} & 63 & \textcolor{#e03131}{\mathbf{72}} & \textcolor{#e03131}{\mathbf{81}} \\ \hline \end{array}\]

Решение подготовила Ольга Хромова, учитель начальных классов
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