NCERT Class 2 Maths (Joyful Mathematics) · Chapter 10
Fun at the Fair
Money: notes and coins, paise and rupees, spending and money left, paying the same amount in different ways, and shopping sums.
📌 What you’ll learn in this chapter
- Indian notes and coins
- 100 paise = 1 rupee
- Finding the money spent and the money left
- Making one amount with different notes and coins
- Adding and subtracting money in word problems
🎡 Let’s Begin: Sonu’s Mela Money
Sonu gets ₹40 from Nani for the mela. He buys a whistle for ₹10 and a balloon for ₹15.
Spent: 10 + 15 = ₹25. Left: 40 − 25 = ₹15. Enough for a candy floss! 🍭
💰 Part 1: Notes and Coins
- Coins: ₹1, ₹2, ₹5, ₹10, ₹20
- Notes: ₹10, ₹20, ₹50, ₹100, ₹200, ₹500
- 100 paise = ₹1. So 2 × 50 paise = ₹1 and 4 × 25 paise = ₹1.
➖ Part 2: Money Spent and Money Left
Money given − Money spent = Money left
💡 Count up to find what was spent
Had ₹50 and ₹12 is left? Count up from 12: 12 → 20 (8), 20 → 50 (30). Spent = 8 + 30 = ₹38. Shopkeepers often count this way!
🪙 Part 3: Many Ways to Pay
₹35 can be paid as: ₹20 + ₹10 + ₹5, or ₹10 + ₹10 + ₹10 + ₹5, or ₹20 + ₹5 + ₹5 + ₹5.
⚠️ Common mistake
Counting coins instead of their value. ❌ 3 coins are not ₹3 if they are ₹10 coins! 3 × ₹10 coins = ₹30.
✏️ Practice Time
Try these on your own first, then check your answer below each question.
Q1. You have ₹60 and spend ₹45. How much is left?
✅ Answer₹15
Q2. How many ₹10 notes make ₹50?
✅ Answer5
Q3. A pen costs ₹12 and a book costs ₹35. What is the total?
✅ Answer₹47
Q4. How many 50 paise coins make ₹2?
✅ Answer4
📘 NCERT Textbook Activity Help
Hints and answers for the activities in the textbook, page by page. Try each one yourself before looking at the answer!
Page 114 · How much Rupal spentRides
✅ AnswerMerry-go-round ₹10 · Train ₹20 · Giant wheel ₹10 + ₹5 = ₹15
Total spent on rides = 10 + 20 + 15 = ₹45
₹50 − ₹45 = ₹5 left with Rupal
You had ₹40 and ₹3 is left: 40 − 3 = ₹37 spent (count up: 3 → 10 is 7, 10 → 40 is 30, 7 + 30 = 37).
Pages 115–117 · Tickets, notes, and old coinsTotal spent on rides = 10 + 20 + 15 = ₹45
₹50 − ₹45 = ₹5 left with Rupal
You had ₹40 and ₹3 is left: 40 − 3 = ₹37 spent (count up: 3 → 10 is 7, 10 → 40 is 30, 7 + 30 = 37).
How much money?
✅ AnswerA. Train: 2 tickets × ₹20 = ₹40 · Merry-go-round: ₹30 ÷ ₹10 = 3 tickets · Giant wheel: 2 × ₹15 = ₹30
C. Look at a real ₹500 note and count how many times “five hundred rupees” (in words) and “500” (in numbers) are printed. The monument on the back of the ₹500 note is the Red Fort (Lal Qila), Delhi.
Old coins: A. 4 coins of 25 paise make ₹1 (25 + 25 + 25 + 25 = 100) · B. 5 coins of 20 paise make ₹1
Pages 118–119 · Pop the balloonC. Look at a real ₹500 note and count how many times “five hundred rupees” (in words) and “500” (in numbers) are printed. The monument on the back of the ₹500 note is the Red Fort (Lal Qila), Delhi.
Old coins: A. 4 coins of 25 paise make ₹1 (25 + 25 + 25 + 25 = 100) · B. 5 coins of 20 paise make ₹1
Prize money: Pink ₹1, Red ₹2, Blue ₹5, Yellow ₹10, Green ₹20
✅ AnswerA. Red + Pink = ₹3 (given) · Red + Green + Red = ₹24 · Blue + Blue + Pink = ₹11 · Green + Yellow = ₹30
B. ₹17 = Yellow + Blue + Red (10 + 5 + 2) · ₹22 = Green + Red (20 + 2) · ₹31 = Green + Yellow + Pink (20 + 10 + 1)
C. Three different colours for the most money: Green + Yellow + Blue = ₹35
D. Four different colours: Green + Yellow + Blue + Red = ₹37
Page 120 · Different ways to payB. ₹17 = Yellow + Blue + Red (10 + 5 + 2) · ₹22 = Green + Red (20 + 2) · ₹31 = Green + Yellow + Pink (20 + 10 + 1)
C. Three different colours for the most money: Green + Yellow + Blue = ₹35
D. Four different colours: Green + Yellow + Blue + Red = ₹37
₹54 and ₹85
✅ AnswerMany answers are right! Some ideas:
₹54: two ₹2 + three ₹10 + one ₹20 (given) · one ₹50 + two ₹2 · two ₹20 + one ₹10 + two ₹2 · one ₹50 + four ₹1 · five ₹10 + two ₹2
₹85: one ₹50 + one ₹20 + one ₹10 + one ₹5 · four ₹20 + one ₹5 · one ₹50 + three ₹10 + one ₹5 · one ₹50 + one ₹20 + three ₹5
Check each row by adding it up.
Page 121 · Let us buy₹54: two ₹2 + three ₹10 + one ₹20 (given) · one ₹50 + two ₹2 · two ₹20 + one ₹10 + two ₹2 · one ₹50 + four ₹1 · five ₹10 + two ₹2
₹85: one ₹50 + one ₹20 + one ₹10 + one ₹5 · four ₹20 + one ₹5 · one ₹50 + three ₹10 + one ₹5 · one ₹50 + one ₹20 + three ₹5
Check each row by adding it up.
Money needed and money left
✅ AnswerNotebook ₹15 + Curd ₹28 = ₹43 · You have ₹10 + ₹20 = ₹30 · ₹13 more needed
Oranges ₹30 + Mug ₹10 = ₹40 · You have ₹50 + ₹5 = ₹55 · ₹15 left
Crayons ₹20 + Ball ₹20 + Bottle ₹55 = ₹95 · You have ₹20 + ₹10 + ₹10 = ₹40 · ₹55 more needed
(Check the coins in your book. They look like ₹10 coins.)
Page 122 · Add and solveOranges ₹30 + Mug ₹10 = ₹40 · You have ₹50 + ₹5 = ₹55 · ₹15 left
Crayons ₹20 + Ball ₹20 + Bottle ₹55 = ₹95 · You have ₹20 + ₹10 + ₹10 = ₹40 · ₹55 more needed
(Check the coins in your book. They look like ₹10 coins.)
Sums and word problems
✅ Answer₹18 + ₹32 = ₹50 · ₹15 + ₹27 = ₹42 · ₹47 + ₹50 = ₹97 · ₹22 + ₹35 = ₹57
A. 25 + 40 = ₹65 · B. 43 + 14 = ₹57 · C. 30 + 60 = ₹90 · D. 58 − 48 = ₹10
A. 25 + 40 = ₹65 · B. 43 + 14 = ₹57 · C. 30 + 60 = ₹90 · D. 58 − 48 = ₹10
👨👩👧 Tips for Parents
- Play “shop” at home with price tags and real or paper coins.
- At the shop, let your child pay and check the change.
- Keep a piggy bank and count the savings every week.