Praxis 5003 Math

LOVE LOVE LOVE Khan Academy. Was looking for Praxis 5003 Math subtest prep but could not find. I see all the CORE stuff.  Will the CORE math cover what I need for Praxis 5003 math? Anyway, in the interim am following content from paid site (which focuses more on mechanics) and hopping over to Khan for deeper understanding. Loving it!

Elementary Education: Mathematics Subtest (5003)

The Mathematics Subtest (5003) takes 65 minutes to complete. It focuses on 50 selected-response questions as well as numeric questions. An online scientific calculator is available to assist test-takers as needed. The subtest is divided into three categories, Numbers and Operations, Algebraic Thinking, and Geometry and Measurement, Data, Statistics, and Probability. Questions on this subtest include selected-response, including both single- and multiple-selection multiple choice, and numeric entry questions.

Thank you!

Karen