\[\boxed{\mathbf{Страница}\mathbf{\ \ 13}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[\boxed{\mathbf{3}\mathbf{.}}\]
\[5 \cdot 12 < 21 \cdot 5\]
\[29 \cdot 7 > 29 \cdot 6\]
\[48 \cdot 3 = 3 \cdot 48\]
\[24 \cdot 6 > 24\ :6\]
\[12 + 12 < 12 \cdot 7\]
\[33\ :3 < 33 \cdot 3\]
\[\boxed{\mathbf{4}\mathbf{.}}\]
\[Вы\ записываете\ только\ ответы\ \]
\[1)\ 45 - (10 + 5) = 45 - 15 = 30\]
\[2)\ (10 - 7) + 80 = 3 + 80 = 83\]
\[3)\ 43 + 20 = 63\]
\[4)\ 95 - 50 = 45\]
\[5)\ 50 + 32 = 82\]
\[6)\ 54 - 4 = 50\]
\[7)\ 40 - 21 = 19\]
\[\boxed{\mathbf{5}\mathbf{.}}\]
\(2\) | \[15\] | \[14\] | \[7\] | \[5\] | \[4\] |
---|---|---|---|---|---|
\[19\] | \[3\] | \[5\] | \[20\] | \[15\] | \[6\] |
\[13\] | \[9\] | \[15\] | \[10\] | \[8\] | \[14\] |
\[12\] | \[9\] | \[11\] | \[11\] | \[12\] | \[17\] |
\[9\] | \[5\] | \[12\] | \[4\] | \[6\] | \[4\] |
\[\boxed{\mathbf{6}\mathbf{.}}\]
\[2 \cdot 5\] | \[2 \cdot 3\] | \[2 \cdot 7\] | \[2 \cdot 4\] | \[2 \cdot 8\] | \[2 \cdot 10\] | \[2 \cdot 6\] | \[2 \cdot 9\] | \[2 \cdot 2\] |
---|---|---|---|---|---|---|---|---|
\[10\] | \[6\] | \[14\] | \[8\] | \[16\] | \[20\] | \[12\] | \[18\] | \[4\] |
\[\boxed{\mathbf{7}\mathbf{.}}\]
\[12 + 9 = 21\]
\[12 - 9 = 3\]
\[Ответ:\ числа\ 12\ и\ 9.\]