MATHCOUNTS of California served more than 2,800 students in 2023. Help us continue to build a love of math and problem solving among California middle-schoolers!
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Tests and Answers for 2024 Chapter Competition Available

Materials for the 2024 Chapter Competition — including Answer Keys and Solutions — are now available.

In Memoriam: Becky Ishii

Longtime MATHCOUNTS of California volunteer Becky Lynn Ishii passed away May 9, 2023, at age 69. Becky grew up in Cypress where she and her husband, Cliff, partnered in his engineering firm and volunteering for MATHCOUNTS of California, the National Society of Professional Engineers–California, and Orange County Optimists. Read more about Becky’s many accomplishments here.

Support MATHCOUNTS of California

MATHCOUNTS of California relies on local donations to run chapter competitions. Registration fees and donations to the national MATHCOUNTS Foundation provide test materials and support the national competition. Please help us grow the appreciation of math and problem solving among California middle school students.

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Thank You!


$1,000 or More

Sam Grossman, P.E.

Cliff Ishii, P.E., and Becky Ishii

Tim McCarthy, P.E., and Cynthia Porter

Up to $1,000

Jean C. Chang

David Giandomenico


James Kelly

Eldon Lee

Professional Engineers in California Government Redding Section

SpringLight Education Institute LLC