Even and Odd Numbers
Key Concepts
- Identify a group of objects that are even or odd
Introduction
Count the number of ice creams and tell if the number is even or odd.
There are seven ice creams. Divide 7 ice creams into pairs to identify whether the number 7 is even or odd.
We cannot divide 7 into 2s because one ice cream is left in the above image. So, seven is an odd number.
Can you count the number of apples present in the image?
Yes, there are 8 apples, and we can divide 8 into 2s. So, 8 is an even number.
Even Numbers
The objects which we can count by 2s are known as even numbers.
Count the squares by 2s.
Here we can count the squares by 2s like 2, 4, 6, and 8. So, 2, 4, 6 and 8 are even numbers.
Example:
Write whether the number of objects present in the image is even or odd.
There are 8 objects present in the image. We can count the objects by 2s. So, 8 is even.
Example:
Write whether the number of objects present in the image is even or odd.
Solution:
There are 10 objects present in the image. We can count the objects by 2s. So, 10 is even.
Example:
Write whether the number of objects present in the image is even or odd.
Solution:
There are 16 objects present in the image. We can count the objects by 2s and here 8 pairs of shoes are there. So, 16 is an even number.
Example:
Write whether the number of objects present in the image is even or odd.
Solution:
There are 8 objects present in the image. We can count the objects by 2s. So, 8 is even.
Odd Numbers
The object which we cannot count by 2s is known as odd numbers.
Count the squares by 2s.
Here we cannot count by 2s. So, 3 and 5 are odd numbers.
Example:
Write whether the number of objects present in the image is even or odd.
Solution:
There are 7 objects present in the image. We cannot count the objects by 2s. So, 7 is odd.
Example:
Write whether the number of objects present in the image is even or odd.
Solution:
There are 5 objects present in the image. We cannot count the objects by 2s. So, 5 is odd.
Example:
Write whether the number of objects present in the image is even or odd.
Solution:
There are 7 objects present in the image. We cannot count the objects by 2s. So, 7 is odd.
Example:
Write whether the number of objects present in the image is even or odd.
Solution:
There are 9 objects present in the image. We cannot count the objects by 2s. So, 9 is odd.
Example:
Write whether the number of objects present in the image is even or odd.
Solution:
There are 11 objects present in the image. We cannot count the objects by 2s. So, 11 is odd.
Exercise
- Write whether the number is even or odd.
- Write the equation for this model
- Count the number of squares present in the image and write if it is odd or even.
- Write whether the number of objects present in the image is even or odd.
- Count the number of squares present in the image and write if it is odd or even?
- Write the equation for this model.
- Write whether the number of objects present in the image is even or odd.
- Count the number of squares present in the image and write if it is odd or even?
- Write the equation for this model.
- Count the number of squares present in the image and write if it is odd or even?
Concept Map
What we have learned
- How to identify a group of even and odd numbers?
Related topics
Square 1 to 20 : Chart, Table, Perfect Squares and Examples
Square 1 to 20 When you multiply a number by itself, the result is called a square. And when you’re preparing for exams, you need to have a foundation for algebra and quick mental math because you get a really short time to do your exam. Therefore, learning the squares from one to twenty is […]
Square 1 to 40 : Table, Perfect Squares, Chart and Examples
Square 1 to 40 When you multiply a number by itself, the resulting number is a square, and if you are someone who is either appearing in a competitive exam or just wants to do well in math in school, knowing square 1 to 40 is a really important skill. But manually multiplying every time, […]
Square Root : Definition, Formula, Methods and Types Explained
Square Root Square roots are one of those seemingly daunting maths topics that appear in many different situations, from algebra to geometry. Yet the concepts behind them aren’t as hard to grasp. It makes handling numbers far easier if you know the concept well. Let us understand how to find the square roots of a number […]
Cubes 1 to 20 : Chart, Table, Memory Tricks and Examples
Most students don’t struggle much with smaller cubes like 2³ or 3³. Those usually come quickly. The hesitation starts with numbers like 11³ or 17³. Or when someone suddenly asks, what is 20 cubed? That pause is not a memory problem. It’s about the lack of proper understanding and hence confidence. Naturally, learning cubes 1 […]
Other topics
Comments: