Question

Round the number to the nearest tens : $39$

Answer 1

Given, number is $39$.

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

.Here one's place is $9>5$.

So, $39\to 40$.

Hence, the nearest tens round off of $39$ is $40$.