Today we are going to be learning about odd and even numbers.

1         2         3         4         5         6          7         8           9         10

Odd numbers are any number that ends in a 1,3,5,7 or 9

Even number are any number that ends in a 0,2,4,6 or 8

An even number is a number that can be divided into two equal groups. An odd number is a number that cannot be divided into two equal groups. 

Take a look at some useful videos and websites below that help explain odd and even numbers.

Remember that any number that ends in a 0 2 4 6 8 is even, and any number that ends in a 1 3 5 7 9 is odd.

So for example:

13 is odd because there will always be one friend left over if you were pair them in two's. A quicker way of seeing if 13 is odd or even is to look to see what number it ends in. In this case it is the number 3 which is odd so therefore 13 is also odd.  

14 is even because if you were to pair them in twos there will be no one left out without a friend. A quicker way of seeing whether 14 is odd or even is to look to see what the number ends in. In this case it is the number 4 which is even therefore 14 is also even. 

Extra Challenge - Can you work out whether the numbers below are odd or even?

1

7

12

15

16

18

20

23