Number Lines

Rules for Multiplication and Division -20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Addition Subtraction Positive + Negative Left Positive - Negative Right Negative + Negative Negative - Negative Negative + Positive Negative - Positive Positive + Positive Positive - Positive Rules for Multiplication and Division Positive x Positive Positive Positive x Negative Negative Negative x Positive Negative x Negative