Math and maths are the standard forms of this word in American and British English respectively. We can write A B Example 1. See the graphics below.
Given set A and set B the set difference of set B from set A is the set of all element in A but not in B.
Difference is the result of subtracting one number from another. In some cases this means a difference between two values such as two points on a line. The result of subtracting one number from another. Find two numbers whose sum and difference are 25 and 5 respectively.