Welcome to Mathnasium of Denville

🤩🤩🤩🤩Mathnasium is like a gym…getting our child engaged in Math Fitness and building her stamina and strength f...

Jodi Wilson

Great tutors, teachers, etc... kids love it.


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

Mon, Tue, Wed, Thu, Fri
10:00AM - 8:00PM
1:00AM - 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..

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"The team at Denville Mathnasium is incredible with the kids. They make the classes fun and keep the kids engaged. I have seen a significant increase in my daughter’s confidence and interest in math in the two months she’s attended. All of the instructors that my daughter has worked with have successfully introduced new concepts in ways in which she can understand and immediately learn. I am very appreciative for the owner, Debbie, who is very engaged with the kids and knows everything about what is going on within the center. Great job Denville Mathnasium team! "

— Isabel Lucas


22 Broadway

Denville, NJ 07834

United States