Click HERE to go to the Khan academy web site. Under the “Watch” tab, view video instructions for Arithmetic and Pre-Algebra or Algebra topics. Additionally, under the “Practice” tab, practice problems on a variety of Arithmetic, Pre-Algebra and Algebra topics are available.
"Without math, would our seafaring ancestors ever have seen the world? Great mathematical thinkers and their revolutionary discoveries have an incredible story. Explore the beginnings of logarithms through the history of navigation, adventure and new worlds." From TED-Ed., by George Christoph
Connect four game pieces in a row before your opponent does.
Fill in all the squares with the numbers so that the sum of all row, columns, and diagonals is the same.
Make every circle add up to 99.
Solve an interesting puzzle involving the differences of given numbers.
Challenge others. Challenge yourself.