This filter was created and tested in the article listed here

Sandieson, R. (2006). Pathfinding in the research forest: The Pearl Harvesting methodfor effective information retrieval., Education and Training in DevelopmentalDisabilities, 41(4), 401- 409.

Math* OR Money OR Computation OR "Daily living Skills" OE Number OR Numerals OR Arithmetic OR Addition OR Purchasing OR Calc* OR Banking OR Subtraction OR "time telling" OR Counting OR Self-care OR "Measurement skills"