## Even and Odd Numbers

In this tutorial students will learn about the characteristics of even and odd numbers. The students will learn about the sum of 2 even numbers, the sum of 2 odd numbers and sum of an even and an odd number.

All even numbers have a divisor of 2

All even numbers also have a either a 0, 2, 4, 6 or 8 in the one’s place.

All odd numbers do not have a divisor of 2.

All odd numbers also have a either a 1, 3, 5, 7 or 9 in the one’s place.

**Even + Even = Even**

The sum of 2 even numbers is always even.

2+6=8

**Odd + Odd = Even**

The sum of 2 odd numbers is always odd.

1+3=4

**Odd + Even = Odd**

The sum of an odd and an even number is always odd.

7+4=11

### FUN FACT

The sum of consecutive odd numbers are perfect squares.

1 = **1**

1 + 3 = **4** = 2 x 2

1 + 3 + 5 = **9** = 3 x 3

1 + 3 + 5 + 7 = **16** = 4 x 4

1 + 3 + 5 + 7 + 9 = **25** = 5 x 5

1 + 3 + 5 + 7 + 9 + 11= **36** = 6 x 6

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