Orange County Math Council
Competition Categories
Number Sense
Consists of two tests added together: Estimation (counts for 40% of score) and Mental Math (counts for 60% of score).

Estimation
Team Test — Six stations are located around the perimeter of the room. Problems usually involve estimating some sort of measurement: length, area, volume, weight, liquid volume, metric or standard measurements.

Mental Math
Individual Test – Students will be shown 40 different mental math questions. They will have five seconds to study the problem, and five seconds to write the answer. No work is allowed…all answers must be done mentally. Individual scores are added together to form one team score.
 

Algebra and Functions
Team Test – Each team will answer 9-10 Algebra and Functions questions…most problems are word problems or logic puzzles.
 

Measurement and Geometry
Team Test – Each team will be asked to build an object using materials provided. Students must sketch their construction prior to building, then test it, with multiple trials. Object is judged using a rubric.


Statistics, Data Analysis and Probability
Team Test — Each team will answer about 10-15 multiple-step questions relating to statistics and probability, then conduct an experiment, predict results, gather data, and analyze the experiment based on their outcomes. 

Mathematical Reasoning
Team Test — 25 word problems
Students must show as much work as possible. Diagrams, charts, etc. help with scoring points.