Brush off those superpowers, it's time to team up with the Infinity Squad to save the city from certain destruction! Just like any team of superheroes, each member of this courageous group has a unique skill set, in this case a knack for math. Readers will be up to the challenge of helping the intrepid Infinity Squad solve a variety of problems as they endeavor to foil the evil plans of Doc Zero. At-level math problems are woven cleverly into the...