Comparing groups of coins
key points :
🪙 Understanding Coins
- Coins have different values (₹1, ₹2, ₹5, ₹10).
- Each coin represents a different amount of money.
🔢 Counting Coins in a Group
- Count coins one by one or skip count (like 2, 4, 6 for ₹2 coins).
- Add all coins to find the total value.
- Example: ₹5 + ₹2 + ₹1 = ₹8
⚖️ Comparing Two Groups
Find the total value of each group.
Compare using:
- Greater than ( > )
- Less than ( < )
- Equal to ( = )
📊 Use of Symbols
- ₹10 > ₹5 → 10 is greater than 5
- ₹3 < ₹7 → 3 is less than 7
- ₹6 = ₹6 → both are equal
🧠 Important Tips
Don’t just count the number of coins, count their values.
A group with fewer coins can have more value.
- Example: One ₹10 coin > five ₹1 coins
Arrange coins neatly to avoid mistakes.
🎯 Practice Ideas
Give students two groups of coins and ask:
- Which group has more money?
- Which group has less?
Use real coins or pictures for better understanding.
Learn with an example
🗼 Which is not equal to 2 5-rupee coins?
- 2 2-rupee coins, 4 1-rupee coins, and 4 50-paisecoins
- 1 5-rupee coin, 1 1-rupee coin, and 8 50-paise coins
- 2 2-rupee coins, 5 1-rupee coins, and 2 50-paise coins
- 2 2-rupee coins, 3 1-rupee coins, and 5 50-paise coins
- First, count how much 2 5-rupee coins are worth. Count by five hundreds. 2 5-rupee coins are worth ₹10.00.
- Now count how much each group of coins is worth.
- Count the 5-rupee coins by counting by fives.
Count the 2-rupee coins by counting by twos.
Count the 1-rupee coins by counting by ones.
Count the 50-paise coins by counting by fifties. Remember to count by paise, not by rupees. - 2 2-rupee coins, 4 1-rupee coins, and 4 50-paise coins are worth ₹10.00.
- 1 5-rupee coin, 1 1-rupee coin, and 8 50-paise coins are worth ₹10.00.
- 2 2-rupee coins, 5 1-rupee coins, and 2 50-paise coins are worth ₹10.00.
- 2 2-rupee coins, 3 1-rupee coins, and 5 50-paise coins are worth ₹9.50. 2 2-rupee coins, 3 1-rupee coins, and 5 50-paise coins are not equal to 2 5-rupee coins.
🗼 Which is not equal to 3 2-rupee coins?
- 5 1-rupee coins and 2 50-paise coins
- 2 2-rupee coins and 1 50-paise coin
- 1 5-rupee coin and 1 1-rupee coin
- 4 1-rupee coins and 4 50-paise coins
- First, count how much 3 2-rupee coins are worth. Count by two hundreds. 3 2-rupee coins are worth ₹6.00.
- Now count how much each group of coins is worth.
- Count the 5-rupee coins by counting by fives.
Count the 2-rupee coins by counting by twos.
Count the 1-rupee coins by counting by ones.
Count the 50-paise coins by counting by fifties. Remember to count by paise, not by rupees. - 5 1-rupee coins and 2 50-paise coins are worth ₹6.00.
- 2 2-rupee coins and 1 50-paise coin are worth ₹4.50. 2 2-rupee coins and 1 50-paise coin are not equal to 3 2-rupee coins.
- 1 5-rupee coin and 1 1-rupee coin are worth ₹6.00.
- 4 1-rupee coins and 4 50-paise coins are worth ₹6.00.
🗼 Which is not equal to 2 5-rupee coins?
- 5 1-rupee coins and 10 50-paise coins
- 3 2-rupee coins, 2 1-rupee coins, and 1 50-paise coin
- 2 2-rupee coins, 2 1-rupee coins, and 8 50-paise coins
- 4 2-rupee coins and 2 1-rupee coins
- First, count how much 2 5-rupee coins are worth. Count by five hundreds. 2 5-rupee coins are worth ₹10.00.
- Now count how much each group of coins is worth.
- Count the 2-rupee coins by counting by twos.
Count the 1-rupee coins by counting by ones.
Count the 50-paise coins by counting by fifties. Remember to count by paise, not by rupees. - 5 1-rupee coins and 10 50-paise coins are worth ₹10.00.
- 3 2-rupee coins, 2 1-rupee coins, and 1 50-paise coin are worth ₹8.50. 3 2-rupee coins, 2 1-rupee coins, and 1 50-paise coin are not equal to 2 5-rupee coins.
- 2 2-rupee coins, 2 1-rupee coins, and 8 50-paise coins are worth ₹10.00.
- 4 2-rupee coins and 2 1-rupee coins are worth ₹10.00.
Let’s practice!🖊️
