Revathi Sivasankar and Manikandan Jayaprabha Solutions for Chapter: Numbers, Exercise 2: EXERCISE

Round off both the numbers to the nearest tens and then find the product.

$35\times 21$

Round off both the numbers to the nearest tens and then find the product.

$48\times 16$

Round off both the numbers to the nearest tens and then find the product.

$85\times 17$

Round off both the numbers to the nearest tens and then find the product.

$97\times 38$

A bus goes from Chennai to Tiruchi $\left(620 \text{kms}\right)$ and then to Madurai, another $287$ kms. The next day the bus retraces the journey. Estimate the distance travelled by the bus.

How did you do this sum? $\Rightarrow$By addition  (or) By addition and Multiplication.

There are $3842$marbles in a blue bag and $1253$ marbles in a red bag. Estimate the total number of marbles in both the bags.

A shopkeeper sells $68 \text{kg}$ of rice every day. Find the estimated amount of rice he would have sold in $30$ days?

On Monday, the number of spectators for a cricket match was $49,532$ and on Tuesday there were $52,618$. On which day were there more spectators and by how much?