Adding, Subtracting, Multiplying and Dividing Integers
Positive + Positive = Positive Negative + Negative = Negative Subtracting a Negative is the same as adding: 8 - (-3) = 8 + 3 = 11 The sum of a negative and a positive: Use the sign of the large number and then subtract: Example 1 8 + (-12) = -4 Example 2 (-7) + 17 = 10 Example 3 7 + (-3) = 4 Example 4 18 + (-20) = -2 Positive x Positive = Positive Negative x Negative = Negative Positive x Negative = Negative Negative x Positive = Negative Positive ÷ Positive = Positive Negative ÷ Negative = Positive Negative ÷ Positive = Negative Positive ÷ Negative = Positive