Question

Give a rough estimate $($ by rounding off to nearest hundred $)$ and also a closer estimate $($ by rounding off to nearest tens $)$ of each of the following$:$

$489347-48268$

Answer 1

The given numerical expression is $489347-48268$

First find the given summation nearest to ten's

Nearest tens to $489347$ is $=489350$

Nearest tens to $48268$ is $=48270$

Required difference $=489350-48270$

$=4,41,080$

Now find the given summation nearest to hundredths

Nearest hundred to $489347$ is $=489300$

Nearest hundred to $48268$ is $=48300$

Required difference$=489300-48300$

$=4,41,000$

Hence$,$ the given difference nearest to ten's and hundred are $4,41,080$ and $4,41,000$ respectively$.$