§ Задание 433
\[\boxed{\text{5.4}\text{3}\text{3.}}\]
\[\textbf{а)}\ 42 \cdot 5 = 210;\ \]
\[210\ :7 = 30;\ \]
\[210\ :15 = 14;\ \]
\[210\ :3 = 70.\ \]
\[\textbf{б)}\ \]

\[\boxed{\text{5.4}\text{3}\text{3.}}\]
\[\textbf{а)}\ 42 \cdot 5 = 210;\ \]
\[210\ :7 = 30;\ \]
\[210\ :15 = 14;\ \]
\[210\ :3 = 70.\ \]
\[\textbf{б)}\ \]
