A synthesis of four studies regarding math facts:
Math Fluency Is Etiologically Distinct From Untimed Math
Performance, Decoding Fluency, and Untimed Reading
Performance: Evidence From a Twin Study;
The Co-Development of Skill at and Preference for Use of
Retrieval-Based Processes for Solving Addition Problems:
Individual and Sex Differences from First to Sixth Grade;
Cognitive Predictors of Achievement Growth in Mathematics: A Five Year Longitudinal Study;
Competence with Fractions Predicts Gains in Mathematics
Achievement