To multiply $13$ by $12$, how much should we add to $13$ multiplied by $10$.

Find the product of $18\times 15$ by splitting.

Find the product of $22\times 15$ by splitting.

The PTA has decided to buy $6$ benches and $4$ tables for the reading room. The PTA gave a contract to get benches at $1657$ rupees and tables at  $2395$ rupees each. How much money is needed?

If the required answer is $₹K$, write the value of $K$.

$627$ children donated $8 \mathrm{rupees}$ each to Namma fund. How much was received from the children$?$

If the required answer is $₹ \mathrm{K}$, write the value of $\mathrm{K}$.

If the required answer is $₹K$, write the value of $K$.

Identify the pattern and then complete the following.

$$\begin{gathered} 37\times 3=111 \\ 37\times 6=222 \\ 37\times 9=333 \end{gathered}$$

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My India Club school gave pens and notebooks to$248$ children of the LP section, on Independence Day.

The price of a pen is $25 \mathrm{rupees}$ and the price of a notebook is $30 \mathrm{rupees}$. How much did the club spend in all $?$

If the required answer is $₹K$, write the value of $K$.