\[\boxed{\text{Страница}\text{\ 22.}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
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\[1)\ Ответ:\ \text{ABCD} -\]
\[прямоугольник.\]
\[2)\ Ответ:\ \text{ABCD} -\]
\[прямоугольник.\]
\[\boxed{75.}\]
\[\boxed{76.}\]
\[60 \cdot 4 = 240\]
\[20 \cdot 8 = 160\]
\[5 \cdot 90 = 450\]
\[7 \cdot 70 = 490\]
\[200\ :5 = 40\]
\[210\ :7 = 30\]
\[320\ :80 = 4\]
\[450\ :90 = 5\]