integer
• a positive number, a negative number or zero
but not a fraction or a decimal fraction.
EXAMPLES:
Positive + Positive = Positive
Negative + Negative = Negative
Positive + Negative or Negative + Positive
• use the larger number and its sign, subtract
Negative  Positive = Negative
Positive  Negative = Positive
Negative  Negative = Negative + Positive
• use the larger number and its sign, subtract
Positive x Positive = Positive
Negative x Negative = Positive
Negative x Positive = Negative
Positive x Negative = Negative
• change double negatives to a positive
Positive ÷ Positive = Positive
Negative ÷ Negative = Positive
Negative ÷ Positive = Negative
Positive ÷ Negative = Negative
• change double negatives to a positive
