Positive and Negative Numbers We’re working with positive numbers as a review for our algebra, and here I’m using tokens of different color taped together with masking tape so the coin has two different sizes and can represent positive and negative numbers. This is just one way to represent manipulation of positive and negative numbers, but I think it’s a good way because we can see how they neutralize each other out in addition, subtraction, and why when we multiply to negatives together they b