Question

Estimate the sum of $3897$ and $6955$

Answer 1

Given $3897$ and $6955$

On rounding off by general rule

$3897$ is rounded off to $4000$

$6955$ is off to $7000$ respectively

So,

$$\begin{gathered} 3897+6955 \\ =4000+7000 \\ =11000 \end{gathered}$$

Hence, Sum of $3897$ and $6955$ is estimated as$11000$