Question

Check the following rounding off .Correct if it is wrong.

$7805\to 7000$

Answer 1

The following rounding off $7805\to 7000$ is incorrect as the given number's highest place value is thousand so we need to round off it to nearest thousand by checking its hundred's place digit.

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

Here hundred's digit is $8>5$.

So, $7805\to 7000$ is incorrect and the correct round off is $7805\to 8000$.