Estimating to the nearest hundreds by rounding off
Once Ayush went to market with his mother.
They bought one kg of both oranges and apples for
$Rs204$
But his mother gave only
$Rs200$
to the shopkeeper and he didnâ€™t disagree with that money.
Now, a question came in Ayushâ€™s mind why the shopkeeper didnâ€™t demand the actual cost.
He asked his mother about this, she replied that the value was a estimated value.
Till now Ayush was confused so, his mom started teaching him about the estimation to the nearest hundreds by rounding off.
Letâ€™s discuss the estimation of numbers to the nearest hundreds by rounding off.
Letâ€™s consider a group of numbers from
$0$
to
$100$
as,
Here we can observe that number
$1$
to
$49$
are closer to
$0$
in comparison with
$100$
.
And, the numbers
$51$
to
$99$
are closer to
$100$
in comparison with
$0$
.
In case of estimating to nearest hundred, we always look at the hundreds value which are nearest to the number.
We follow same concept for finding out estimated values nearest to hundreds.
Let us consider a
$3$
digit number
$513$
and we need to estimate this to the nearest hundreds.
Here, we observe that it is nearer to
$500$
so, it is rounded off to
$500$
.
Now, suppose we consider a
$3$
digit number
$891$
and we need to estimate this number to the nearest hundreds by rounding off.
We can clearly observe that
$891$
is nearest to
$900$
. So, its estimated value will be
$900$
We see some other examples and round off them to their closer number as
Revision
Number
$1$
to
$49$
are closer to
$0$
in comparison with
$100$
so, it is rounded off to
$0$
.
Number
$51$
to
$99$
are closer to
$100$
in comparison with
$0$
so, it is rounded off to
$100$
.
In case of estimating to nearest hundred we always look at the hundreds value which are nearest to the number.
The End