For A, moving three columns left then two right is a net move of one column left: \(7.2\times10=72\).

For B, moving three columns right then two left is a net move of one right: \(7.2\div10=0.72\).

The values \(72\) and \(0.72\) differ by two place-value columns, so their factor is \(100\).

Answer

\(A=72\), \(B=0.72\); A is \(100\) times as large as B.