Question

Estimate the following products.

f) $8,106\times 872$

Answer 1

Now,Round off the numbers to their highest places.

In $8,106$, the highest place is thousands and so it is rounded off to $8,000$.

In $872$, the highest place is hundreds and so it is rounded off to $900$

So, $$\begin{gathered} 8,000\times 900 \\ =72,00,000 \end{gathered}$$

Actual product is $70,68,432$.

So, actual product is close to the estimated product.