Money - Conversion of Rupees and Paise

Indian Currency Units: Money in India is measured in two units: Rupees ($₹$) and Paise ($p$). Think of Rupees as the main unit and Paise as the smaller subunit used for change.

The Fundamental Link: The relationship between the two units is that $1$ Rupee is exactly equal to $100$ Paise. Visually, imagine one large $₹ 1$ coin being exchanged for a bag containing $100$ tiny $1 p$ coins.

Conversion of Rupees to Paise: To convert Rupees into Paise, we multiply the amount by $100$. A simple visual trick is to remove the $₹$ symbol and the decimal point (dot). For example, $₹ 4$ becomes $400 p$.

Conversion of Paise to Rupees: To convert Paise into Rupees, we divide the amount by $100$. Visually, this means counting two digits from the right side of the number and placing a dot (.) before them, then adding the $₹$ symbol at the start.

Using the Decimal Point: In written money like $₹ 12.50$, the dot acts as a wall. The numbers to the left of the dot represent whole Rupees, and the two digits to the right represent the Paise.

Handling Single Digit Paise: When Paise is less than $10$ (like $5 p$ or $8 p$), we must use a zero as a placeholder after the dot when writing in Rupees. For example, $8$ paise is written as $₹ 0.08$. This ensures we don't confuse it with $80$ paise ($₹ 0.80$).

Combining Rupees and Paise: To convert an amount that has both Rupees and Paise into total Paise, convert the Rupees first and then add the remaining Paise. For example, $₹ 2$ and $50 p$ is $200 p + 50 p = 250 p$.