Why is it that mathematicians use plus and minus in sixteenth century?

In the sixteenth century, mathematicians began using the symbols "+" for addition and "−" for subtraction to simplify mathematical notation and enhance clarity in calculations. These symbols helped streamline the representation of operations, making it easier to convey complex ideas without lengthy verbal descriptions. The adoption of these symbols was part of a broader movement towards standardization in mathematical practices, which facilitated communication and learning in the field.