Evaluate :

(0.06)²

We have:

(0.06)² = 0.06 × 0.06

First we multiply 6 by 6

$\begin{matrix} & & 6 \ \times & & 6 \ \hline & \bold{3} & \bold{6} \end{matrix}$

∴ 6 × 6 = 36

Sum of decimal places in given decimals = (2 + 2) = 4

So, the product contains 4 places of decimal

∴ (0.06)² = 0.0036