5-8 -> Math -> TNEGNUM

Arithmetic Operations with Negative and Positive Numbers Review

Adding Real Numbers:

Positive + Positive = Positive

5 + 3 = 8

Negative + Negative = Negative

(- 6) + (- 3) = - 9

Sum of a negative and a positive number

Keep the sign of the larger number and subtract

(- 6) + 3 = -3

9 + (-12) = - 3

(- 5) + 7 = 2

4 + ( -2) = 2.

Subtracting Real Numbers:

Negative - Positive = Negative (same as adding two negative numbers)

(- 8) - 3 = -8 + (-3) = -11

Positive - Negative = Positive + Positive = Positive

4 - (-3) = 4 + 3 = 7

Negative - Negative = Negative + Positive =

Keep the sign of the larger number and subtract

(-7) - (-5) = ( -7) + 5 = -2

(-5) - ( -7) = (-5) + 7 = 2

Multiplying Real Numbers:

Positive x Positive = Positive	3 x 4 = 12
Negative x Negative = Positive	(-3) x (-5) = 15
Negative x Positive = Negative	(-3) x 2 = -6
Positive x Negative = Negative	3 x (-2) = -6

Dividing Real Numbers: