Maths

Even and Odd Numbers

Class 2

🎯 Learning Objectives

Understand what even numbers are.
Understand what odd numbers are.
Identify even and odd numbers up to 50.
Sort numbers into even and odd groups.
Learn the quick trick to tell even from odd.

📖 Let Us Begin!

Ravi has 6 sweets. He wants to share them equally with his friend Arjun. He gives 3 to Arjun and keeps 3. They both get the same! When we can share a number equally into two groups with nothing left over, it is an even number. If there is one left over, it is an odd number.

Even and Odd Numbers illustration showing objects grouped in pairs

What Are Even Numbers?

Even numbers can be divided into two equal groups with nothing left over. They always end in 0, 2, 4, 6, or 8.

Even numbers up to 20:
2, 4, 6, 8, 10, 12, 14, 16, 18, 20

Example 1: Meena has 8 bangles. She puts 4 on her left hand and 4 on her right hand. No bangles left over. So 8 is even.

Example 2: A cricket team has 10 players practising in pairs. 10 ÷ 2 = 5 pairs. No one is left out. So 10 is even.

Even numbers from 20 to 50: 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50

What Are Odd Numbers?

Odd numbers cannot be divided into two equal groups. There is always 1 left over. They always end in 1, 3, 5, 7, or 9.

Odd numbers up to 20:
1, 3, 5, 7, 9, 11, 13, 15, 17, 19

Example 1: Sita has 7 ladoos. She tries to share equally with her sister. Each gets 3, but 1 ladoo is left over. So 7 is odd.

Example 2: There are 15 children in a line. If they try to make pairs, 7 pairs form but 1 child is left alone. So 15 is odd.

Odd numbers from 20 to 50: 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49

The Quick Trick — Look at the Last Digit!

To check if a number is even or odd, just look at the last digit (the ones place).
• If the last digit is 0, 2, 4, 6, or 8 → the number is EVEN.
• If the last digit is 1, 3, 5, 7, or 9 → the number is ODD.

Is 36 even or odd? Last digit is 6. So 36 is even.
Is 47 even or odd? Last digit is 7. So 47 is odd.
Is 100 even or odd? Last digit is 0. So 100 is even.

Even and Odd Numbers Table (1 to 30)

Even Numbers	Odd Numbers
2, 4, 6, 8, 10	1, 3, 5, 7, 9
12, 14, 16, 18, 20	11, 13, 15, 17, 19
22, 24, 26, 28, 30	21, 23, 25, 27, 29

Fun Facts About Even and Odd Numbers

Adding rules:
• Even + Even = Even (4 + 6 = 10 ✓)
• Odd + Odd = Even (3 + 5 = 8 ✓)
• Even + Odd = Odd (4 + 3 = 7 ✓)

Real-life examples:
• A ₹2 coin is even. A ₹5 coin is odd.
• Your house number might be even or odd!
• Cricket has 11 players — that's an odd number!

📝 Key Words

Word	Meaning
Even number	A number that can be divided into two equal groups (ends in 0, 2, 4, 6, 8)
Odd number	A number that cannot be divided into two equal groups (ends in 1, 3, 5, 7, 9)
Equal	The same amount on both sides
Divide	To split into equal groups
Last digit	The number in the ones place (rightmost digit)

⭐ Key Points to Remember

Even numbers end in 0, 2, 4, 6, or 8.
Odd numbers end in 1, 3, 5, 7, or 9.
Even numbers can be shared equally between 2 people.
Odd numbers always have 1 left over when shared between 2 people.
0 is an even number.
Just look at the last digit to tell if a number is even or odd.
Even + Even = Even, Odd + Odd = Even, Even + Odd = Odd.

Finished learning? Now test what you know!

🎯 Quick Quiz — Test Yourself!

Answer these questions right here. You get instant feedback — no paper needed!

Score: 0 / 8

1. Which of these is an even number?

8 is even. Even numbers end in 0, 2, 4, 6 or 8.

2. Which of these is an odd number?

13 is odd. Odd numbers end in 1, 3, 5, 7 or 9.

3. Even numbers always end in:

Even numbers end in 0, 2, 4, 6 or 8.

4. Is 20 even or odd?

20 ends in 0, so it is even.

5. Is the number 16 even or odd?

16 ends in 6, so it is even.

6. Is the number 27 even or odd?

27 ends in 7, so it is odd.

7. When you can share a group of things into two equal groups with none left over, the number is ______.

If it shares equally into two with nothing left over, it is even.

8. Is the number 9 even or odd?

9 ends in 9, so it is odd.

✏️ Practice Questions

A. Fill in the Blanks (10)

1. 6 is an number. (even / odd)

2. 13 is an number. (even / odd)

3. Even numbers end in 0, 2, 4, , or 8.

4. The next even number after 14 is .

5. The next odd number after 9 is .

6. 0 is an number.

7. The last digit of 38 is , so 38 is .

8. Odd + Odd = . (even / odd)

9. The smallest even number is .

10. There are even numbers between 1 and 10.

B. Choose the Correct Answer (MCQ - 5)

1. Which number is even?

a) 7b) 12c) 15d) 21

2. Which number is odd?

a) 10b) 18c) 17d) 24

3. Meena has 9 flowers. Can she share them equally between 2 friends?

a) Yesb) Noc) Maybe

4. What is 4 + 6?

a) 10 (even)b) 11 (odd)c) 9 (odd)

5. How many odd numbers are there from 1 to 20?

a) 8b) 10c) 12

C. Short Answer (5)

1. Write all even numbers from 1 to 20.

2. Write all odd numbers from 1 to 20.

3. Arjun has 14 marbles. Is 14 even or odd? Can he share them equally with his friend?

4. Sita has ₹25. Is this an even or odd number? How do you know?

5. Write the next 3 even numbers after 30.

D. True or False (5)

1. 22 is an odd number.

2. All numbers ending in 5 are odd.

3. 0 is neither even nor odd.

4. Even + Odd always gives an odd number.

5. 50 is an even number.

E. Match the Following (5)

Column A	Column B
1. 18	a) Odd number
2. 33	b) Even number
3. 40	c) Odd number
4. 27	d) Even number
5. 11	e) Odd number

🎨 Activity: Even or Odd Sort

Write the numbers 1 to 20 on small pieces of paper. Sort them into two piles: Even and Odd. Count how many are in each pile. Are there the same number in each pile?

Want to review the lesson again?

Mathematics

Even and Odd Numbers

Class 2 | CBSE / NCERT / ICSE

Name: Class: Date:

Learning Objectives

Understand what even numbers are.
Understand what odd numbers are.
Identify even and odd numbers up to 50.
Sort numbers into even and odd groups.
Learn the quick trick to tell even from odd.

Let Us Begin!

What Are Even Numbers?

Even numbers can be divided into two equal groups with nothing left over. They always end in 0, 2, 4, 6, or 8.

Even numbers up to 20: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20
Example 1: Meena has 8 bangles. She puts 4 on each hand. No bangles left. So 8 is even.
Example 2: A cricket team has 10 players practising in pairs. 10 ÷ 2 = 5 pairs. So 10 is even.

Even numbers from 20 to 50: 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50

What Are Odd Numbers?

Odd numbers cannot be divided into two equal groups. There is always 1 left over. They always end in 1, 3, 5, 7, or 9.

Odd numbers up to 20: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19
Example 1: Sita has 7 ladoos. She shares with her sister — each gets 3, but 1 is left over. So 7 is odd.
Example 2: 15 children try to make pairs. 7 pairs form but 1 child is left alone. So 15 is odd.

Odd numbers from 20 to 50: 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49

The Quick Trick — Look at the Last Digit!

To check if a number is even or odd, just look at the last digit (the ones place).

• Last digit is 0, 2, 4, 6, or 8 → EVEN • Last digit is 1, 3, 5, 7, or 9 → ODD

Is 36 even or odd? Last digit is 6. So 36 is even.
Is 47 even or odd? Last digit is 7. So 47 is odd.
Is 100 even or odd? Last digit is 0. So 100 is even.

Even and Odd Numbers Table (1 to 30)

Even Numbers	Odd Numbers
2, 4, 6, 8, 10	1, 3, 5, 7, 9
12, 14, 16, 18, 20	11, 13, 15, 17, 19
22, 24, 26, 28, 30	21, 23, 25, 27, 29

Fun Facts About Even and Odd Numbers

Adding rules: Even + Even = Even (4 + 6 = 10) | Odd + Odd = Even (3 + 5 = 8) | Even + Odd = Odd (4 + 3 = 7)
Real-life: A ₹2 coin is even. A ₹5 coin is odd. Cricket has 11 players — odd!

⭐ Key Points to Remember

Even numbers end in 0, 2, 4, 6, or 8.
Odd numbers end in 1, 3, 5, 7, or 9.
Even numbers can be shared equally between 2 people.
Odd numbers always have 1 left over.
0 is an even number.
Just look at the last digit to tell even from odd.
Even + Even = Even, Odd + Odd = Even, Even + Odd = Odd.

A. Fill in the Blanks (10)

1. 6 is an number. (even / odd)

2. 13 is an number. (even / odd)

3. Even numbers end in 0, 2, 4, , or 8.

4. The next even number after 14 is .

5. The next odd number after 9 is .

6. 0 is an number.

7. The last digit of 38 is , so 38 is .

8. Odd + Odd = . (even / odd)

9. The smallest even number is .

10. There are even numbers between 1 and 10.

B. Choose the Correct Answer (MCQ - 5)

1. Which number is even?

a) 7b) 12c) 15d) 21

2. Which number is odd?

a) 10b) 18c) 17d) 24

3. Meena has 9 flowers. Can she share them equally between 2 friends?

a) Yesb) Noc) Maybe

4. What is 4 + 6?

a) 10 (even)b) 11 (odd)c) 9 (odd)

5. How many odd numbers are there from 1 to 20?

a) 8b) 10c) 12

C. Short Answer (5)

1. Write all even numbers from 1 to 20.

2. Write all odd numbers from 1 to 20.

3. Arjun has 14 marbles. Is 14 even or odd? Can he share them equally with his friend?

4. Sita has ₹25. Is this an even or odd number? How do you know?

5. Write the next 3 even numbers after 30.

D. True or False (5)

1. 22 is an odd number.

2. All numbers ending in 5 are odd.

3. 0 is neither even nor odd.

4. Even + Odd always gives an odd number.

5. 50 is an even number.

E. Match the Following (5)

Column A	Column B
1. 18	a) Odd number
2. 33	b) Even number
3. 40	c) Odd number
4. 27	d) Even number
5. 11	e) Odd number

Activity: Even or Odd Sort

Write E (even) or O (odd) next to each number:

3 ___ 8 ___ 11 ___ 16 ___ 19 ___ 20 ___ 5 ___ 14 ___ 27 ___ 42 ___

Circle all the even numbers: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20

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