Question

Sum of estimated value of $512857$ to nearest ten thousand and estimated value of $34$ to nearest tens is ?

• A. 512910
• B. 512900
• C. 51200
• D. 510030

Answer 1

Answer: (D)

($510030$)

Given number is $512857$
We will observe the digit at its thousand place which is, $2<5$,hence, we will round down this number.
Hence, $512857$ rounded to nearest ten thousand is $510000$
Similar way, the digit at unit place is $4<5$ of the number $34$ and thus we will round down this number.
Hence, $34$ rounded to nearest ten is $30$
Estimated Sum of rounded numbers is $=510000+30=510030$