Maths

Even and Odd Numbers

Class 2

🎯 Learning Objectives

📖 Let Us Begin!

Ravi has 6 sweets. He wants to share them equally with his friend. He gives 3 to his friend 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 Numbers

Even numbers can be divided into two equal groups. 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: 8 sweets shared between 2 friends = 4 each. No sweets left over. So 8 is even.

Odd Numbers

Odd numbers cannot be divided into two equal groups. 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: 7 sweets shared between 2 friends = 3 each, with 1 left over. So 7 is odd.
Quick trick: Look at the last digit. If it is 0, 2, 4, 6, or 8 -- the number is even. If it is 1, 3, 5, 7, or 9 -- the number is odd.

📝 Key Words

WordMeaning
Even numberA number that can be divided into two equal groups (ends in 0, 2, 4, 6, 8)
Odd numberA number that cannot be divided into two equal groups (ends in 1, 3, 5, 7, 9)
EqualThe same amount on both sides
DivideTo split into equal groups
⭐ Key Points to Remember

✏️ Practice Questions

A. Fill in the Blanks
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 .
B. Choose the Correct Answer
1. Which number is even?
a) 7b) 12c) 15
2. Which number is odd?
a) 10b) 18c) 17
3. Meena has 9 flowers. Can she share them equally between 2 friends?
a) Yesb) Noc) Maybe
C. Short Answer
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?
🎨 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 use this as a worksheet? Switch to the A4 printable view.

Learning Objectives
Let Us Begin!

Ravi has 6 sweets. He shares them equally with his friend -- 3 each. 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 Numbers

Even numbers can be divided into two equal groups. 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: 8 sweets shared between 2 friends = 4 each. No sweets left over. So 8 is even.

Odd Numbers

Odd numbers cannot be divided into two equal groups. 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: 7 sweets shared between 2 friends = 3 each, with 1 left over. So 7 is odd.

Quick trick: Look at the last digit. 0, 2, 4, 6, 8 = even. 1, 3, 5, 7, 9 = odd.

Key Words
WordMeaning
Even numberA number that can be divided into two equal groups (ends in 0, 2, 4, 6, 8)
Odd numberA number that cannot be divided into two equal groups (ends in 1, 3, 5, 7, 9)
EqualThe same amount on both sides
DivideTo split into equal groups
Examples

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

Odd: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19

Key Points to Remember
A. Fill in the Blanks
  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 .
B. Choose the Correct Answer
  1. Which number is even?
    a) 7b) 12c) 15
  2. Which number is odd?
    a) 10b) 18c) 17
  3. Meena has 9 flowers. Can she share them equally between 2 friends?
    a) Yesb) Noc) Maybe
C. Short Answer
  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?
Activity: Even or Odd Sort

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

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

Circle all the even numbers in this list:

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20