Money — Rupees and Paise
Money & Data Handling: Money — Rupees and Paise
Money — Rupees and Paise
Money — Rupees and Paise
What you'll learn
- Understand the relationship 1 rupee = 100 paise.
- Add costs of two or more items to find a total bill.
- Calculate change received after a purchase.
Key concepts
Level 1 — Rupees and paise
Verbal: Money is written as ₹ (rupees) and paise, e.g. ₹25.50 means 25 rupees and 50 paise. Since 1 rupee = 100 paise, ₹25.50 = 2,550 paise.
Level 2 — Converting rupees to paise
Symbolic: ₹8 = 8 × 100 = 800 paise. ₹8.75 = 800 + 75 = 875 paise.
Level 3 — Adding costs (total bill)
Example: A notebook costs ₹35 and a pencil box costs ₹60. Total = ₹35 + ₹60 = ₹95.
Level 4 — Finding change
Example: A toy costs ₹120. If you pay with a ₹200 note, change = ₹200 − ₹120 = ₹80.
NCERT anchor: Math-Magic 4, Ch 6 — The Junk Seller (buying, selling, and handling money).
Worked example
Priya buys a story book for ₹85 and a water bottle for ₹140. She pays with a ₹500 note. How much change does she get?
Step 1 — Find total cost: ₹85 + ₹140 = ₹225.
Step 2 — Find change: ₹500 − ₹225 = ₹275.
Answer: ₹275 change.
Common mistakes
| Mistake | Why it happens | Fix |
|---|---|---|
| Using 1 rupee = 10 paise | Confusing with place value | Always remember 1 rupee = 100 paise |
| Forgetting to add all items before finding change | Subtracting cost of only one item | Add ALL item costs first, then subtract from the amount paid |
| Subtracting in the wrong order | Rushing the calculation | Change = amount paid − total cost (paid must be more) |
| Misplacing the decimal point in rupees–paise | Not aligning paise as two digits | Always write paise as two digits, e.g. ₹5.05, not ₹5.5 for 5 paise |
Quick check
- ₹12 = ___ paise (1,200 paise)
- A pen costs ₹18 and a ruler costs ₹12. Total cost? (₹30)
- You pay ₹100 for an item costing ₹65. Change? (₹35)
- ₹7.50 = ___ paise (750 paise)
- Stretch: Three items cost ₹45, ₹60 and ₹95. You pay with a ₹500 note. What is the change? (₹300)
Revision tip: Practise "shop-shop" at home — add prices of two toys/snacks and work out change from a ₹100 or ₹500 note.
Open the Practice tab for graded questions on Money.
Key Takeaways (TL;DR)
- What you'll learn
- Key concepts
- Worked example
- Common mistakes
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