\[\boxed{\text{35.}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[7 \cdot (2 \cdot 5) = 7 \cdot 10 = 70.\]
\[7 \cdot (2 \cdot 5) = (7 \cdot 2) \cdot 5 =\]
\[= 14 \cdot 5 = 70.\]
\[7 \cdot (2 \cdot 5) = (7 \cdot 5) \cdot 2 =\]
\[= 35 \cdot 2 = 70.\]
\[4 \cdot (5 \cdot 3) = 4 \cdot 15 = 60.\]
\[4 \cdot (5 \cdot 3) = (4 \cdot 5) \cdot 3 =\]
\[= 20 \cdot 3 = 60.\]
\[4 \cdot (5 \cdot 3) = (4 \cdot 3) \cdot 5 =\]
\[= 12 \cdot 5 = 60.\ \]