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Konsep asas :
B = Bracket ( )
O = of
D = Division ÷
M = Multiplication ×
A = Addition +
S = Subtraction ̶
RULES :
• a + (+b) = a + b
• a – (-b) = a + b
• a + (-b) = a – b
• a – (+b) = a - b
Directed number

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Directed number

  • 1. Konsep asas : B = Bracket ( ) O = of D = Division ÷ M = Multiplication × A = Addition + S = Subtraction ̶
  • 2. RULES : • a + (+b) = a + b • a – (-b) = a + b • a + (-b) = a – b • a – (+b) = a - b