We are open for in-person instruction in our center. Live, face-to-face online instruction is also available via Mathnasium@home.

Holiday Hours

Our center will be closed on the following days:

Thanksgiving Break
Nov 27, 2025
Thanksgiving Break
Nov 28, 2025
Thanksgiving Break
Nov 30, 2025
Christmas Break
Dec 24, 2025
Christmas Break
Dec 25, 2025
Christmas Break
Dec 26, 2025
New Years Break
Dec 31, 2025
New Years Break
Jan 1, 2026
Center Improvement Day
Jan 19, 2026
Math Kangaroo
Mar 19, 2026
Easter Sunday
Apr 5, 2026
Memorial Day Weekend
May 24, 2026
Memorial Day Weekend
May 25, 2026
Center Improvement Day
Jun 17, 2026
Independence Day Weekend
Jul 5, 2026
Center Improvement Day
Sep 4, 2026
Labor Day Weekend
Sep 6, 2026
Labor Day Weekend
Sep 7, 2026

Hours of Operation

Instructional Hours

Sun
11:30AM - 3:30PM
Mon-Thu
3:30PM - 7:45PM
Fri
3:30PM - 6:30PM

Office Hours

Sun
11:30AM - 3:30PM
Mon-Thu
3:30PM - 7:45PM
Fri
3:30PM - 6:30PM

What makes Mathnasium different from other tutoring programs?

Play Button Learn About the Mathnasium Method™

The Mathnasium Method™

Why Choose Mathnasium?

Face-to-face Math-Only Instruction

In-Center or online, our instructors work face-to-face with your child to focus on their unique math learning needs.

Customized Learning Plans

We create a customized plan to meet your child's unique educational needs and goals.

Math is Fun at Mathnasium

We have engaging instructors, awesome student rewards, and a fun learning space.

Schedule your math skills assessment today

Latest News & Posts

Math is Key to Future Success

Feb 4, 2022 | Sammamish

  Our children’s long-term success depends on their ability to compete and collaborate with people around the world. There is one language they will all need to use, and it’s not English: It’s math. Unfortunately, the difference between U.S..

#MathTricks: Divisibility

Dec 9, 2021 | Sammamish

To test if a number is divisible by 11, follow the general rule: the difference of the sum of alternating digits can be divided by 11.   To determine if the number 2,728 is divisible by 11, find the difference of the ..

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