Question

difference, minus, less than, and decreased by are all words that mean _____________.
divide
add
subtract
multiply

Explanation:

These words are associated with the subtraction operation in mathematics. For example, "the difference between a and b" means a - b, "a minus b" is a - b, "a less than b" can be written as b - a in some contexts, and "a decreased by b" is a - b.

Answer:

subtract