Addition and subtraction of integers

Type of NumbersOperationResultExample
Positive + PositiveAddPositive (+)10 + 15 = 25
Negative + NegativeAddNegative (-)(-10) + (-15) = -25
Positive + NegativeSubtract put the sign of the greater number(-10) + 15 =5
Negative + PositiveSubtract put the sign of the greater number10 + (-15)= -5

Addition of Integers

  • Positive integer + Negative integer
  • Example: (+5) + (-2) Subtract: 5 – 2 = +3 (Sign of bigger integer)
  • Example: (-5) + (2) Subtract: 5-2 = -3 (Sign of bigger integer)
  • Positive integer + Positive integer
  • Example: (+5) + (+2) = +7
  • Negative integer + Negative integer
  • Example: (-5) + (-2) = -7
  • Add the two integers and add the negative sign.

Subtraction of integers

In subtraction of integers also there are three possibilities-

  • Subtraction between two positive numbers. eg 8-6 = 2
  • Subtraction between two negative numbers. eg -8-(-6) = -8+6= -2
  • Subtraction between a positive number and a negative number. eg-8+6= -2
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