Math Problem Generator Based on Rules

Problem Description

When preparing for a test, I want to give my students several practice problems similar to what they will see on the assessment. Generating new problems takes a very long time, especially when I need to create math problems in which the answer follows certain constratints (no decimals, no negatives, etc.)

Proposed Solution

Some sort of problem generator where you input the original question you are making new versions of, as well as rules that the new practice problems need to follow.