# KS1 lesson: ODD and EVEN numbers

Learning  Objectives

• Learn what is an even number
• Learn how to recognize an even number
• Learn what is an odd number
• Learn how to recognize an odd number

Key words: odd, even, consecutive,

Even numbers

The even numbers are 2, 4, 6, 8,
An Even number is a number that can be divided exactly by 2:
2÷2= 1
4÷2=2
6÷2=3
8÷2=3

All Even numbers end in 0, 2, 4, 6, 8,

Example:
22 is even because it ends in 2
46 is even because it ends in 6
328 is even because it ends in 8
7520 is even because it ends in 0
148 is even because it ends in _______
122 is even because it ends in _______
428 is even because it ends in _______
632 is even because it ends in _______
844 is even because it ends in _______
548 is even because it ends in _______

Odd numbers

Odd numbers are the ones ending in 1, 3, 5, 7, 9. They can never be divided exactly by 2

Examples:
21 is odd because it ends in 1
67 is odd because it ends in 7
233 is odd because it ends in 3
2739 is odd because it ends in 9
943 is odd because it ends in _______
841 is odd because it ends in _______
459 is odd because it ends in _______
231 is odd because it ends in _______
43 is odd because it ends in _______

Secret rules

No matter how long is the number, the last digit will always tell if the number is odd or even
Even + even

Any two even numbers added together will give an even number

2 + 2 = 4 (even)
2(even)+4(even) = 6 (even)
8(even) + 20 (even) = ____(even)
6(even) + 14 (even) = ____(even)
___(even) + ___(even) = ____( _____)
___(even) + ___(even) = ____( _____)

Odd + even

Any two consecutive numbers added will give an odd number

1 + 4 = 5 (odd)
5(odd) + 6(even) = 11 (odd)
7(odd) + 4 (even) = ____ (odd)
3(odd) + 4(even) = ____ (odd)
7(odd) + 6 (even) = ____ (odd)
___(even) + ___(odd) = ____( _____)
___(even) + ___(odd) = ____( _____)

Odd + odd

Any two odd numbers added together will give an even number
ex: 3 + 3 = 6 (even)
5(odd) + 7(odd)= ___ (even)
5(odd) + 7(odd)= ___ (even)
___(odd) + 3(odd)= ___ (even)
___(odd) + ___(odd) = ____( _____)
___(odd) + ___(odd) = ____( _____) 