\[\boxed{\mathbf{Страница}\mathbf{\ \ 76}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[\boxed{\mathbf{22}\mathbf{.}\mathbf{\ }}\]
\[49\ :7 = 7 \Longrightarrow 7 \cdot 3 = 21 \Longrightarrow\]
\[\Longrightarrow 21 + 24 = 45 \Longrightarrow 45\ :9 = 5\]
\[6 + 18 = 24 \Longrightarrow 24\ :4 = 6 \Longrightarrow\]
\[\Longrightarrow 6 + 54 = 60 \Longrightarrow 60\ :10 = 6\]
\[\boxed{\mathbf{23}\mathbf{.}\mathbf{\ }}\]
\[a \cdot b\] | \[72\] | \[45\] | \[36\] | \[49\] | \[8\] |
---|---|---|---|---|---|
\[a\] | \[9\] | \[5\] | \[6\] | \[7\] | \[2\] |
\[b\] | \[8\] | \[9\] | \[6\] | \[7\] | \[4\] |
\[\boxed{\mathbf{24}\mathbf{.}\mathbf{\ }}\]
\[1)\ 2 \cdot 7 = 14\ (тетрадей) -\]
\[лежит\ на\ столе.\]
\[Ответ:14\ тетрадей.\]
\[2)\ 7 \cdot 9 = 63\ (куста) - пионов\ \]
\[на\ 9\ грядках.\]
\[Ответ:63\ куста.\]
\[3)\ 80\ :20 = 4\ (подъезда) - в\ \]
\[доме.\]
\[Ответ:4\ подъезда.\]
\[\boxed{\mathbf{25}\mathbf{.}\mathbf{\ }}\]
\[1)\ 20\ :5 = 4\]
\[4 \cdot 10 = 40\]
\[2)\ 81\ :9 = 9\]
\[9 + 45 = 54\]
\[3)\ 8 \cdot 7 = 56\]
\[56 - 44 = 12\]