NCERT Class 1 Maths (Joyful Mathematics) · Chapter 12

How Much Can We Spend?

Indian coins and notes, buying toys, adding money, paying the same amount in different ways, and saving in a gullak.

📌 What you’ll learn in this chapter
  • Coins: ₹1, ₹2, ₹5, ₹10 · Notes: ₹10, ₹20, ₹50, ₹100
  • Adding up coins and notes
  • Paying the same amount in different ways
  • How much more money is needed
  • Why saving money is good

🍬 Let’s Begin: The Toffee Shop

Bittu has a ₹5 coin and a ₹2 coin. A lollipop costs ₹7. Does he have enough? ₹5 + ₹2 = ₹7. Yes! 🍭

His friend Pinky has seven ₹1 coins. She has ₹7 too! The same amount can be made in different ways.

💰 Part 1: Coins and Notes

  • Coins: ₹1, ₹2, ₹5, ₹10, ₹20
  • Notes: ₹10, ₹20, ₹50, ₹100, ₹200, ₹500
⚠️ Common mistake Counting coins instead of adding their values. ❌ Three coins are not ₹3 if they are ₹5 coins. 3 coins of ₹5 = ₹5 + ₹5 + ₹5 = ₹15.

🪙 Part 2: Many Ways to Pay

₹10 can be: one ₹10 note · two ₹5 coins · five ₹2 coins · ₹5 + ₹2 + ₹2 + ₹1

💡 Counting money Start with the biggest coin or note, then count on the smaller ones. ₹10 + ₹5 + ₹2 → 10… 15… 17.

✏️ Practice Time

Try these on your own first, then check your answer below each question.

Q1. ₹10 + ₹5 + ₹1 = ?
✅ Answer₹16
Q2. How many ₹2 coins make ₹10?
✅ Answer5 coins
Q3. A kite costs ₹15. You have ₹10. How much more do you need?
✅ Answer₹5

📘 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 115 · Coins and notes

Write the values

✅ AnswerCoins: ₹1, ₹2, ₹5, ₹10 · Notes: ₹10, ₹20, ₹50, ₹100
Page 116 · Rahim Kaka the toy seller

Let us do

✅ AnswerPrices in the picture: bus ₹14, elephant ₹15, ball ₹20 (and a small toy marked ₹10).
A. Riya gives 4 coins of ₹5 (5 + 5 + 5 + 5 = 20). Sahil gives 2 notes of ₹10.
B. For ₹10: the toy marked ₹10.
C. For ₹20: the ball, or the bus or the elephant (with change left).
D. ₹14 − ₹10 = ₹4 more.
E. With ₹30: the bus and the elephant (14 + 15 = ₹29), or the ball and the ₹10 toy (₹30).
Page 117 · Find the total

Tick the amount

✅ AnswerRow 1: ₹1 + ₹1 + ₹5 = ₹7
Row 2: ₹10 note + three ₹2 coins = ₹16
Row 3: three ₹5 coins + two ₹2 coins = ₹19
Page 118 · Different combinations

Make the amount

✅ Answer₹20: two ₹10 notes · ₹10 + ₹5 + ₹5 · four ₹5 coins · ₹10 + five ₹2 coins
₹10: one ₹10 note · two ₹5 coins · ₹5 + ₹2 + ₹2 + ₹1 · five ₹2 coins
₹13: ₹10 + ₹2 + ₹1 · ₹5 + ₹5 + ₹2 + ₹1 · ₹10 + ₹1 + ₹1 + ₹1
₹8: ₹5 + ₹2 + ₹1 · four ₹2 coins · ₹5 + ₹1 + ₹1 + ₹1
Page 119 · Match the same amount

Draw a line

✅ AnswerA. ₹5 + ₹10 = ₹15 → three ₹5 coins (₹15)
B. ₹5 + ₹2 = ₹7 → ₹1 + ₹1 + ₹5 (₹7)
C. ₹5 + ₹5 + ₹2 = ₹12 → ₹10 note + ₹2 coin (₹12)
Saving: putting a little money in a gullak every day helps you buy something bigger later.

👨‍👩‍👧 Tips for Parents

  • Play shop at home with real coins or paper money.
  • Let your child pay for small things and check the change.
  • Make a gullak from a box and count the savings every Sunday.
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