Question

Estimate the following by rounding off to nearest hundreds :

$11244+3507$

Answer 1

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.

Here,

$$\begin{gathered} 11244\to 11200 \\ 3507\to 3500 \\ 11244+3507\to 11200+3500 \\ =14700 \end{gathered}$$

Hence, $874+478\to 14700$.