Page 13 - PPT Odd and Even number

Rules for Subtraction of odd and even

numbers:

• Just like with addition, there are

4 rules for subtraction.

• i. Even - Even = Even

Example: 4 - 2 = 2

• ii. Even - Odd = Odd
Example: 2 - 1 = 1

• iii. Odd - Odd = Even
Example: 3 - 1 = 2

• iv. Odd - Even = Odd

Example: 3 - 2 = 1