Which mathematical operations are relevant to two-color chips?

Two-color chips are often used in teaching mathematical concepts, particularly in demonstrating operations with integers. The chips are commonly red and yellow, with one color representing positive values and the other representing negative values.

When using two-color chips, students can visually and physically manipulate the chips to understand addition and subtraction of integers. For example, if a student has one yellow chip (representing -1) and two red chips (representing 1 each), they can physically combine these chips to see how they offset each other, illustrating that the result is one red chip remaining, which represents +1.

While fractions, exponents, and decimals may involve other types of numbers, they do not directly relate to the specific teaching method that utilizes two-color chips in the same clear and visual manner as integers. The primary benefit of using two-color chips is to enhance understanding of integer operations, making this the most relevant choice in the context of the question.