Dyscalculia Symptoms Checklist by Renee Hamilton-Newman, 

Numeracy Screener by University of Western Ontario's Numerical Cognition Lab

PanaMath Test of Number Sense (2011) by Justin Halberda at the Department of Psychological and Brain Sciences at the 

     Johns Hopkins University, funded by US National Science Foundation.

Brian Butterworth's Dyscalculia Screener Manual (2003) [ Online Screener requires minimum purchase of 5 licenses at $7 UK each. ]

DyscalculiUM Screener for adults from Loughborough University in Leicestershire, UK (the heart of England).  Contact

Feifer Assessment of Mathematics  (FAM) by Steven G. Feifer, D.Ed. Identifies dyscalculia and subtypes. Ages 5-21. 30-60 mins.    

     Neuropsychological assessment. (2016) [ Requires professional purchase and administration. ]