Question

Estimate the following product :$898\times 785$

Answer 1

Given product is $898\times 785$

For rounding off to nearest hundreds,we first check the digit at ten's place.If the digit at ten's place is less than $5$ then we replace its ten's and one's place by zero but if the digit at ten's place is $\ge 5$ then we add $1$ to hundred's place digit and then replace ten's place and one's place by zero.

$\begin{array}{rcl}898& \to & 900(nearesthundreds)\\ 785& \to & 800(nearesthundreds)\\ So,898\times 785& =& 900\times 800\\ & =& 720000\end{array}$

Hence, Estimation of the following product :$898\times 785$ is $720000$.