There are three mathematical based contests:
This 40-minute, 60-question contest is designed to test knowledge and understanding in the areas of Algebra I and II, geometry, trigonometry, math analysis, analytic geometry, pre-calculus and elementary calculus.
This 10-minute, 80-question mental math contest covers all high school mathematics curricula. All answers must be derived without using scratch paper or a calculator.
The contest includes calculations involving addition, subtraction, multiplication, division, roots, powers, exponentiation, logarithms, trigonometric functions and inverse trigonometric functions. In addition to straightforward calculation problems, the contest includes geometric and stated problems similar to those found in algebra, geometry and trigonometry textbooks, previous contests and League materials related to the contest.
Number Dojo - an app for iPhone or iPad that teaches and allows you to practice number sense.