• Finding unknown values

  • Definition: In Maths, an unknown is a number we do not know.
    An unknown in an equation is the variale to be solved.

  • Symbol: It is often represented by letters such as: a,b,c,...
    For example: Finding the value of a:
    a + 7 = 9 
    OR: 5 Ã· a = 1
    OR: 2 x a = 6 
    OR: 45 - a = 4
     OR: 2 x a + 8 = 16
    

  • There are 4 main ways to find unknown values

    1. In Addition
       
    2. In Subtraction
    3. In Multiplication
    4. In Division

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