By applying the same Nines trick learned in the previous lesson, students will be able to demonstrate fluency with the focus facts and their commutative counterparts. [spacer]
Lesson 10 builds upon the last lesson, utilizing the same strategy to conquer all “Big Nines” facts. The instructional videos’ fairy-tale theme, cinematic music, and familiar characters keep students enchanted and engaged in their learning.
Go to Lesson 10 Videos