Maths

Money

Class 3

🎯 Learning Objectives

📖 Introduction

We use money every day to buy things we need — food, books, toys, clothes and more. In India, our money is called Indian Rupee. The symbol for rupee is ₹.

When Arjun goes to the kirana store near his house, he pays using coins and notes. The shopkeeper gives him back the extra money as change. Let us learn all about Indian money!

The Reserve Bank of India (RBI) prints all the notes and the Government of India makes the coins we use.

Indian Coins and Notes

In India, we use both coins and notes (also called currency notes or bills).

Coins We Use

CoinValueWhat It Looks Like
₹1 coin1 rupeeSmall, round, silver-coloured
₹2 coin2 rupeesSlightly bigger, silver-coloured
₹5 coin5 rupeesRound, silver-coloured, thicker
₹10 coin10 rupeesTwo-toned (silver centre, gold ring)

Notes We Use

NoteValueColour
₹10 note10 rupeesChocolate brown
₹20 note20 rupeesGreenish-yellow
₹50 note50 rupeesFluorescent blue
₹100 note100 rupeesLavender (light purple)
₹200 note200 rupeesBright yellow
₹500 note500 rupeesStone grey
Did you know? All Indian notes have a picture of Mahatma Gandhi on the front and the value written in 17 languages on the back!
Indian coins and currency notes — ₹1, ₹2, ₹5, ₹10 coins and ₹10 to ₹500 notes

Converting Rupees and Paise

Just like 1 metre = 100 centimetres, we have:

₹1 = 100 paise

Paise is the smaller unit of Indian money. We write paise after a dot (decimal point). For example, ₹5.50 means 5 rupees and 50 paise.

Rupees to Paise

To convert rupees to paise, multiply by 100.

Examples

₹1 = 1 × 100 = 100 paise

₹3 = 3 × 100 = 300 paise

₹5.50 = 5 rupees 50 paise = (5 × 100) + 50 = 550 paise

₹7.25 = 7 rupees 25 paise = (7 × 100) + 25 = 725 paise

Paise to Rupees

To convert paise to rupees, divide by 100.

Examples

350 paise = ₹3.50 (3 rupees and 50 paise)

825 paise = ₹8.25 (8 rupees and 25 paise)

1250 paise = ₹12.50 (12 rupees and 50 paise)

Adding Money

When we add money, we add rupees with rupees and paise with paise. If paise add up to 100 or more, we convert them to rupees.

Example 1: ₹45.50 + ₹23.75
₹.P
45.50
+23.75
=69.25

Step 1 (Paise): 50 + 75 = 125 paise. Since 125 > 100, write 25 paise and carry ₹1 to the rupees column.

Step 2 (Rupees): 45 + 23 = 68, plus carried ₹1 = ₹69.

Answer: ₹45.50 + ₹23.75 = ₹69.25

Example 2: ₹125.60 + ₹84.40

Paise: 60 + 40 = 100 paise = ₹1 and 00 paise. Write 00, carry ₹1.

Rupees: 125 + 84 = 209, + 1 = 210.

Answer: ₹125.60 + ₹84.40 = ₹210.00

Example 3: ₹250 + ₹175.50

Paise: 00 + 50 = 50 paise.

Rupees: 250 + 175 = 425.

Answer: ₹250 + ₹175.50 = ₹425.50

Subtracting Money

When we subtract money, we subtract paise from paise and rupees from rupees. If the paise on top are less, we borrow ₹1 (= 100 paise) from the rupees column.

Example 1: ₹100 − ₹67.50
₹.P
100.00
−67.50
=32.50

Step 1 (Paise): 00 − 50? Cannot! Borrow ₹1 from rupees. Rupees become 99, paise become 100. Now 100 − 50 = 50 paise.

Step 2 (Rupees): 99 − 67 = 32.

Answer: ₹100 − ₹67.50 = ₹32.50

Example 2: ₹500 − ₹235.75

Paise: 00 − 75? Cannot! Borrow ₹1. Rupees become 499, paise become 100. 100 − 75 = 25 paise.

Rupees: 499 − 235 = 264.

Answer: ₹500 − ₹235.75 = ₹264.25

Making Change

When you buy something and give more money than the price, the shopkeeper gives back the extra money. This extra money is called change.

Change = Money Given − Price of Item

Example 1

Sita buys a pencil box for ₹45. She gives a ₹50 note. How much change will she get?

Change = ₹50 − ₹45 = ₹5

Example 2

Ravi buys a notebook for ₹32.50. He gives a ₹50 note. How much change?

Change = ₹50 − ₹32.50 = ₹17.50

Example 3

Meena buys a water bottle for ₹85 and a tiffin box for ₹120. She gives ₹500. How much change?

Total cost = ₹85 + ₹120 = ₹205

Change = ₹500 − ₹205 = ₹295

Child at an Indian shop calculating costs and change

Word Problems

Problem 1: Buying at a Shop

Arjun goes to the stationery shop. He buys a geometry box for ₹75.50 and a drawing book for ₹40.25. How much does he spend in all?

Solution: ₹75.50 + ₹40.25 = ₹115.75. Arjun spends ₹115.75 in all.

Problem 2: Pocket Money

Priya gets ₹200 as pocket money every week. She spends ₹85.50 on snacks and ₹45 on a story book. How much money is left with her?

Solution: Total spent = ₹85.50 + ₹45 = ₹130.50. Money left = ₹200 − ₹130.50 = ₹69.50.

Problem 3: Savings

Ravi saves ₹15 every day in his piggy bank. How much money will he save in one week (7 days)?

Solution: ₹15 × 7 = ₹105. Ravi will save ₹105 in one week.

Problem 4: Shopping List

Meena's mother buys the following from the kirana store:

ItemPrice
Rice (1 kg)₹55
Dal (1 kg)₹120
Oil (1 litre)₹145.50
Sugar (1 kg)₹42

Total = ₹55 + ₹120 + ₹145.50 + ₹42 = ₹362.50

She gives ₹500. Change = ₹500 − ₹362.50 = ₹137.50

Child at an Indian shop calculating costs and change

📝 Key Words

WordMeaning
Rupee (₹)The main unit of Indian money
Paise (p)The smaller unit of Indian money; 100 paise = ₹1
CurrencyThe money used in a country (India uses Indian Rupee)
CoinSmall round metal money (₹1, ₹2, ₹5, ₹10)
Note (Bill)Paper money printed by RBI (₹10, ₹20, ₹50, ₹100, ₹200, ₹500)
ChangeMoney returned when you pay more than the price
Price / CostHow much money an item costs
TotalThe sum of all amounts added together
SavingsMoney kept aside and not spent
Decimal PointThe dot (.) that separates rupees from paise (e.g., ₹5.50)
⭐ Key Points to Remember

Finished learning? Now test what you know!