Welcome to mathnasium of Denville

We are incredibly pleased with our experience at Mathnasium Denville. Debbie Lum and the tutors all work hard ...

Jennifer Weglowski

We have had a wonderful experience at Mathnasium in Denville. Debbie, the owner is fantastic and treats each k...

Lauren Patterson

Contact us


  • 22 Broadway
  • Denville, NJ 07834
  • Call (973) 784-4480
  • Text 9737844480

Hours of Operation

Instructional Hours

Mon-Thu 3:00PM - 7:30PM
SAT 10:00AM - 1:00PM
SUN 2:00PM-4:30PM

Office Hours

10AM - 8:00PM
10AM - 1:00PM
1:00PM - 5:00PM
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arrow Alert!

February 13, 2024 - Due to the inclement weather, we will be closed today. Apologies for any inconvenience. Your safety and that of our Staff is our #1 Concern.

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Hello, I'm Debbie, Center Director of Mathnasium of Denville, your neighborhood math-only Learning Center. We Provide proven, effective, and FUN (yes, kids love learning math here) math tutoring to students in elementary, middle school, and high school. Serving Denville, Mountain Lakes, Boonton township, ,Rockaway Borough, Rockaway Township, and Morris areas.

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:

  • Denville
  • Rockaway
  • Mountain Lakes
  • Morris Plains
  • Boonton
  • Dover
  • Randolph



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

Debbie Lum's Founding Story For Mathnasium of Denville

Jul 26, 2022 | Denville

Debbie Lum's founding story for Mathnasium of Debbie Lum

Athletes and Mathematicians: The Perfect Pair

May 23, 2022 | Denville

Have you ever paused to consider how athletes continue to break records? How do they keep getting better and faster? The answer involves math! Many professional athletic teams now hire mathematicians to help them perform at their optimum ability. F..

Upcoming Events

Celebrate Pi Day with Mathnasium
Mar 14, 2024 - Mar 14, 2024
Contests, Find Pi, Discover Pi, Color Pi, Make Pi, Estimate Pi, Eat Pi(e), Pi Scapes, Make Your Own
More Events brn

Find out how Mathnasium will work for your child

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"Great system in teaching and motivating kids in learning."

— K.Y.


22 Broadway

Denville, NJ 07834

United States

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