Mental Math Intense for Grades K-2
Mental Math Intense teaches mental math strategies in a fast pace manner.
Those strategies are now required by Common Core State Standards as part of early algebra, but they are not taught well in schools.
A benchmark for the program is Russian 3rd graders’ mental mathematics worksheets. It includes such problems as 17×7 or 95 over 19. The program is based on understanding number properties on the level of application rather than on “tricks” and memorization.