In math, we write subtraction using the minus symbol (). Typically, subtraction appears in an expression like this:
In plain language, this means subract from . To calculate result of subtracting a number from another see this page.
Addition is a fundamental arithmetic operation represented by the plus symbol (+). It combines two or more numbers into a single numerical value.
A dot between two numbers denotes multiplication in mathematics. The formal name for the dot symbol is an interpunct.
In math, we write division using a horizontal bar between the numerator and denominator.