How to Use a Pie Wheel
Start here. Learn what each section means, where the numbers go, and when to multiply or divide.
Learn Pie Wheels
Use mixed units, reverse relationships, and more closely related formula choices.
Refresh unit and geometry relationships.
Solve forward and reverse relationships.
Loading and dosage problems with more steps.
Separate formula-choice errors from arithmetic errors.
Switch among grade-aware mixed problems.
Start here. Learn what each section means, where the numbers go, and when to multiply or divide.
Learn Pie WheelsRead a problem and pick the formula that solves it.
Start Formula FinderSolve problems from all of this level's topics.
Start Mixed PracticeLevels set the practice difficulty. They are not a copy of the Washington exam and do not predict an exam score.