Welcome to Mathnasium of Smithtown

My kid is doing much better than he was shortly after a month


Richie and the staff at Mathnasium of Smithtown have been working with my 3 children for years. Whether your ...


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  • 140A E. Main St
  • Smithtown, NY 11787
  • Call (631) 257-5386

Hours of Operation

Instructional Hours

Monday 3:30PM - 8:00PM
Tuesday 3:30PM - 8:00PM
Wednesday 3:30PM - 8:00PM
Thursday 3:30PM - 8:00PM
Sunday 10:00AM - 3:00PM

Office Hours

Office Hours
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We specialize in math-only instruction with a focused, caring, and fun learning approach that delivers results.
We proudly serve local communities and schools, including:

  • Smithtown School District
  • Kings Park School District
  • Hauppauge School District
  • Three Village School District
  • Middle Country School District
  • Central Islip School District
  • Sachem School District

Dedicated to providing the best instruction

Our instructors are enthusiastic about math and specially trained in the Mathnasium Method. They create a caring and encouraging environment where your child will learn and thrive!

Meet the Team gallery1

Instructor Spotlight

Katelyn May



One-on-One Assessment

Our unique assessment pinpoints what each child already knows and what they still need to learn.


Customized Learning Plan & Goals

Our detailed plan takes your child step-by-step from where they are to where they need to go.


The Mathnasium Method™

Our proprietary curriculum and teaching method fosters skills that take hold and build upon one another.

Latest News & Posts

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Upcoming Events

Host a Math Fun Night with Mathnasium of Smithtown
Feb 8, 2024 - Dec 31, 2025
Are you interested in hosting a Math Fun Night for your school or organization? Contact us today for
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"The staff at Smithtown are great. My son”s grades have improved significantly and he enjoys going there."

— Michael Elbert


140A E. Main St

Smithtown, NY 11787

United States