The Houston Texans and ConocoPhillips have partnered together the last seven years for TORO's Math Drills, an educational video series designed to challenge 3rd and 4th grade students. This spring, ...
The array can be shown as 5 groups of 3 showing that 5 x 3 = 15. Or it could be shown as 3 groups of 5 showing that 3 x 5 = 15. This demonstrates that multiplication is commutative. Image caption, ...