The aimswebPlus math assessments are sold by Pearson. These online assessments include curriculum-based measures (CBM) and a standards-based assessment designed for screening, progress monitoring, and evaluation of intervention.
Number Comparison Fluency–Triads, Mental Computation Fluency, Concepts and Applications
Purchasing requires Pearson Qualification Level B
Access and Use
Pearson. (2018). aimswebPlus: Efficacy research report. https://eric.ed.gov/?q=aimswebplus&id=ED605145