Алгебра
Английский
Биология
География
Геометрия
История
Русский
Обществознание
Физика
Химия
Информатика
Литература
МатематикаРешебник по математике 3 класс Моро Часть 2 | Страница 105
Страница 105
\[Страница\ 105.\]
Головоломка (стр. 105)
\[\boxed{\mathbf{Головоломка}\mathbf{\ (}\mathbf{поля}\mathbf{)}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[36 = 6 \cdot 6\]
\[36 = 2 \cdot 3 \cdot 6\]
\[48 = 6 \cdot 2 \cdot 2 \cdot 2\]
\[\bigtriangleup = 6;\ \ \ \ \ \ \boxdot = 2;\ \ \ \ \ \odot = 3.\]
\[\boxed{\mathbf{6}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ 5,\ \ \ 10,\ \ \ 15,\ \ \ 20,\ \ \ 25,\ \ \ 30,\ \ \ 35,\ \]
\[\ \ 40,\ldots\]
\[3,\ \ \ 6,\ \ \ 9,\ \ \ 12,\ \ \ 15,\ \ \ 18,\ \ \ 21,\ \ \ 24,\ldots\]
\[6,\ \ \ 12,\ \ \ 18,\ \ \ 24,\ \ \ 30,\ \ \ 36,\ \ \ \ 42,\ldots\]
\[2,\ \ \ 4,\ \ \ 6,\ \ \ 8,\ \ \ 10,\ \ \ 12,\ \ \ 14,\ \ \ 16,\ldots\]
\[7,\ \ \ 14,\ \ \ 21,\ \ \ 28,\ \ \ 35,\ \ \ 42,\ \ \ \ 49,\ldots\]
\[9,\ \ \ 18,\ \ \ 27,\ \ \ 36,\ \ \ 45,\ \ \ 54,\ \ \ 63,\ldots\]
\[8,\ \ \ 16,\ \ \ 24,\ \ \ 32,\ \ \ 40,\ \ \ 48,\ \ \ 56,\ldots\]
\[4,\ \ \ 8,\ \ \ 12,\ \ \ 16,\ \ \ 20,\ \ \ 24,\ \ \ 28,\ldots\]
\[2)\ 54\ :9 \Longrightarrow 6 \cdot 9 = 54\]
\[Ответ:\ \ 6.\]
\[32\ :8 \Longrightarrow 8 \cdot 4 = 32\]
\[Ответ:\ \ 4.\]
\[56\ :7 \Longrightarrow 7 \cdot 8 = 56\]
\[Ответ:\ \ 8.\]
\[18\ :2 \Longrightarrow 9 \cdot 2 = 18\]
\[Ответ:\ \ 9.\]
\[3)\ 64 = 8 \cdot 8\]
\[32 = 4 \cdot 8\]
\[63 = 7 \cdot 9\]
\[48 = 6 \cdot 8\]
\[27 = 3 \cdot 9\]
\[18 = 6 \cdot 3\]
\[24 = 4 \cdot 6\]
\[36 = 6 \cdot 6\]
\[56 = 7 \cdot 8\]
\[81 = 9 \cdot 9\]
\[4)\ \]
|
\[12\] \[30\] \[63\] \[48\] \[18\] \[32\] \[45\] |
\[3\] \[3\] \[4\] \[7\] \[5\] \[8\] \[8\] |
\[56\] \[18\] \[49\] \[72\] \[20\] \[27\] \[40\] |
\[9\] \[7\] \[3\] \[8\] \[6\] \[9\] \[4\] |
|---|
\[\boxed{\mathbf{7}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[27 \cdot 4 = 20 \cdot 4 + 7 \cdot 4 =\]
\[= 80 + 28 = 108\]
\[18 \cdot 5 = 10 \cdot 5 + 8 \cdot 5 =\]
\[= 50 + 40 = 90\]
\[32 \cdot 3 = 30 \cdot 3 + 2 \cdot 3 =\]
\[= 90 + 6 = 96\]
\[17 \cdot 4 = 10 \cdot 4 + 7 \cdot 4 =\]
\[= 40 + 28 = 68\]
\[\boxed{\mathbf{8}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[46\ :2 = 40\ :2 + 6\ :2 =\]
\[= 20 + 3 = 23\]
\[96\ :3 = 90\ :3 + 6\ :3 =\]
\[= 30 + 2 = 32\]
\[84\ :7 = 70\ :7 + 14\ :7 =\]
\[= 10 + 2 = 12\]
\[96\ :4 = 80\ :4 + 16\ :4 =\]
\[= 20 + 4 = 24\]
