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 \(=₹\)