Toy Joy | Maths Grade 3 CBSE

Play with it

Six ideas about money

Rupees and coins, adding prices, and getting the right change. Tap each term to see what it means, with a shop example you can try.

Explore · Money at the shoptap a term

Learn

We buy things with rupees, written with the sign ₹. Money comes as coins (₹1, ₹2, ₹5, ₹10) and notes (₹10, ₹20, ₹50, ₹100).
Different coins can make the same amount: two ₹10 coins make ₹20, just like one ₹20 note.
To make ₹50 you could use one ₹50 note, or five ₹10 coins, or two ₹20 notes and one ₹10 coin.

Worked example. How can you make ₹35 with coins and notes?

One ₹20 note + one ₹10 coin + one ₹5 coin = 20 + 10 + 5 = ₹35.

To find the total cost of more than one toy, we add the prices.
Add the ones first, then the tens — just like adding any numbers.
If you buy three of the same toy, you can add the price again and again, or count in jumps.

Worked example. A toy train is ₹42 and a track is ₹26. What is the total?

Ones: 2 + 6 = 8. Tens: 40 + 20 = 60. Total = ₹68.

When you pay more than the price, the shopkeeper gives back the extra — that is change.
Change = money you gave − price of the toy. Use subtraction.
Before buying, check: is your money enough? If the price is more than your money, you need to save a little more.

Worked example. A puzzle is ₹38. You pay with a ₹50 note. How much change?

₹50 − ₹38 = ₹12 change.

Common mix-up: change is what comes back, not what you paid. If a ₹20 toy is paid with ₹20, the change is ₹0 — you gave the exact amount.

Where you’ll meet it

Buying a snack and a juice means adding two prices and checking your pocket money is enough.

When grown-ups shop for vegetables, they add prices and count the change — you can help check it.

Counting your saved coins tells you how much you have and how much more you need for that toy.

Check yourself

Nine friendly shop questions to check that you can use money — adding prices and finding change — not just remember the coins.

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