👉 In mathematics, a sign is a symbol or expression that indicates whether an operation (such as addition, subtraction, multiplication, division, etc.) does positive or negative results. The most common sign used in algebra and geometry is the plus (+) sign for addition, the minus (-) sign for subtraction, and the equal (=) sign for equality. For example: - + means "plus" - - means "minus" - = means "equal" In these examples, "+" represents a positive result
