Question

Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate (by rounding off to nearest tens) :
439 + 334 + 4,317

Answer 1

$\text{439 round off to 400}$


$\text{334 round off to 300}$


$\text{4317 round off to 4300}$

_____________________________________

$\textbf{Estimated sum = 5000 ( 400 + 300 + 4300 )}$
_____________________________________