The Mathematics Fluency and Calculation Tests (MFaCTs) are a series of measures designed to assess for arithmetic calculation skills and calculation fluency in children ages 6 through 18. There are five main purposes of the MFaCTs: (1) identifying students who are behind in basic math fact automaticity; (2) evaluating possible delays in arithmetic calculation skills; (3) progress monitoring; (4) identifying students with advanced levels of mathematical achievement; and (5) use in research. The MFaCTs was published in 2015 by Pro-Ed Inc. in Austin, TX, and was authored by Cecil R. Reynolds, PhD; Judith K. Voress, PhD; and Randy W. Kamphaus, PhD. The theoretical underpinnings of the MFaCTs measures stem from the belief that mathematical fluency and calculation skills are essential components in the development of math skills in students. With three alternate forms for assessment, the MFaCTs is able to measure mathematical fluency in first grade through fifth and calculation skills in first grade through 12th grade. Due to the construction of the test, the MFaCTs is able to be administered in both group and individual settings. The authors suggest that trained professionals should administer, score, and interpret the results of the test. They mention that teacher aides may administer the measures, but it is suggested that trained professionals should interpret the results. Training is provided through the test manual; no extra training modules need to be completed. A wide range of professionals are able to administer, score, and interpret the MFaCTs, including, but not limited to, school counselors, special education teachers, general education teachers, school psychologists and other related psychologists, educational diagnosticians, neuropsychologists, and any other professional with training in assessment (Reynolds, Voress, & Kamphaus, 2015).There are many strengths to the MFaCTs, as it is overall a good measure to assess for math fact fluency and calculation skills in the intended population. Perhaps one of the stronger advantages of the MFaCTs is its ability to measure what it purports to measure. Whether this be the population or the mathematical construct, the MFaCTs excel in following through on their intended purposes.