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Give a rough estimate $(by\ rounding\ off\ to\ nearest\ hundreds)$ and also a closer estimate $( by\ rounding\ off\ to nearest\ tens)$:$439+334+4,317$.
Given: $439+334+4,317$.
To do: To give a rough estimate $(by\ rounding\ off\ to\ nearest\ hundreds)$ and also a closer estimate $( by\ rounding\ off\ to nearest\ tens)$:
Solution:
Rounding off to hundreds:-
Rounding off $439$ to the nearest hundreds$=400$
Rounding off $334$ to the nearest hundreds$=300$
Rounding off $4,317$ to the nearest hundreds, we get $4,300$
On adding we get,
$400+300+4,300=5,000$
Rounding off to tens:-
Rounding off $439$ to the nearest tens$=440$
Rounding off $334$ to the nearest tens$=330$
And, rounding off $4,317$ to the nearest tens$=4,320$
On adding we get
$440+330+4,320=5,090$
When we round off the given terms to the nearest hundreds: $439+334+4,317=5000$.
When we round off the given terms to the nearest tens: $439+334+4,317=5,090$
Updated on: 10-Oct-2022
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