Introduction
Handling money is an essential skill. In this topic, we learn about the relationship between Rupees and Paise, and how to represent them using decimal points.
Explanation Step by Step
The decimal point (.) separates Rupees from Paise. The numbers to the left of the point are Rupees, and the numbers to the right are Paise. This helps in performing arithmetic operations like addition and subtraction easily.
| Currency Unit | Fraction | Decimal (Rs.) | Paise |
|---|---|---|---|
| 1 Rupee | 1 | 1.00 | 100 |
| Quarter Rupee | 1/4 | 0.25 | 25 |
| Half Rupee | 1/2 | 0.50 | 50 |
| Three-Quarters | 3/4 | 0.75 | 75 |
| One and Quarter | 1(1/4) | 1.25 | 125 |
Sub-topics
Coins and Currency Notes, Rupees-Paise conversion
Conversion Rule: To convert Rupees to Paise, multiply by 100. To convert Paise to Rupees, divide by 100 or place a decimal point two digits from the right.
Examples
Example 1: Convert 4.50 Rupees into Paise.
Tricks and Shortcuts
Always remember: "Quarter" is 0.25, "Half" is 0.50, and "Three-quarters" is 0.75. This makes mental math much faster!
Common Mistakes
Students often forget to write the zero in the paise column for single digits. For example, 8 rupees 5 paise should be 8.05, not 8.5 (which is 8 rupees 50 paise).
Practice Questions
Easy Questions
- How many paise are there in 5 Rupees?
- Convert 0.25 Rupees into paise.
- Write 'Three Rupees and Fifty Paise' in decimal form.
Medium Questions
- Add Rs. 10.25 and Rs. 5.75.
- How many 25-paise coins make 2 Rupees?
- Write 'Two and a quarter rupees' using a decimal point.
Hard Questions
- If a notebook costs Rs. 25.50 and a pencil costs Rs. 4.75, what is the total cost?
- Subtract Rs. 12.80 from Rs. 50.00.
- Convert 875 paise into rupees and paise using decimal notation.
Revision Summary
1 Rupee = 100 Paise. Decimal notation helps in standardizing money representation. Left side = Rupees, Right side = Paise.