Linear Algebra: 3-variable linear equations

Fraction Concoction Game:
Master fractions in the lab: mix, add, and subtract beakers to create the perfect concoction!

Fact Family Game:
Complete fact families and master the link between addition & subtraction and multiplication & division.

Number Bond Garden:
Clear the board by matching number pairs that sum to ten in this garden-themed mental math puzzle.

Online Addition Subtraction Game:
Practice your addition and subtraction skills to help the penguin find its mummy.

Penguin Solitaire:
Move all cards to the foundations to build four full sequences. There are two versions here: Penguin (Tuxedo) and Penguin (Original).

Sawayama Solitaire:
This is similar to the common Klondike Solitaire except for a few changes to make it more strategic.