7. Three mark example problems I

1. The amount deposited by a Gold merchant in his bank account in the month of January is $₹17,53,740$ and in the month of February is $₹15,34,300$. Estimate the sum and difference of the amount deposited to the nearest thousand.

 

 

Sum deposited to the nearest thousand $=₹$

 

Difference in the amount deposited to the nearest thousand $=₹$

 

2. If the cost of a copy of Thirukkural book is $₹188$, then find the estimated cost of $31$ copies of such books.

 

(Note: Find the rounded values of $188$ to hundreds and $31$ to tens and then find the result.)

 

 

Estimated cost $=₹$