Google reviewers rate Mathnasium in Portsmouth five stars based on sixty-four reviews. Customers frequently highlight improved student confidence, academic progress, and increased enjoyment of mathematics through alternative teaching methods. The staff is described as professional, friendly, and accommodating, with specific praise for the owner's management and hiring practices. Families also note the flexible scheduling and the supportive learning environment. No recurring criticisms appear in the provided excerpts, as all reviews are positive.
Data from Google, last updated October 25, 2026.
Reviews from Google, shown as published (original wording, unedited).
Great place, very helpful!
Thank you for sharing, Biljana! We are glad we've had a positive influence on improving your student's math skills. Thank you for being part of our Mathnasium Family. We appreciate your feedback.
Amazing experience.
Thank you for your kind words. We think of everyone as a part of the Mathnasium family and want to make sure everyone feels welcome.
I am extremely grateful for the tutors. They are knowledgeable and care that the kids learn and improve their math skills. Julie is an exceptional administrator. She carefully hires quality tutors; manages the local Kiln Creek franchise well; and is very pleasant and professional.
Mathasium has helped my child from a C student to an A student.
It’s something about their approach to teaching that works, it has made my son want to learn. My 6yo son now comes home and is so proud of what he has just learned, whether it’s skip counting or adding/subtracting, he’s way more competent in his number sense and even tells time on an analog clock. For my 11yo, Mathnasium helped fill the gaps she’d experienced during Covid and has gotten her way up to speed with math. Her math average in class is an 97! Plus, there is no homework from Mathnasium, all the work happens in the center and it is custom to each child. Overall, I’m thoroughly pleased with the work Mathnasium has done with both my children and we all recognize the differences.
Our granddaughter actually enjoys math now. We are notified of her progress and celebrate her mastery of new skills! Would highly recommend.
The tutors here have made a world of a difference in my daughters confidence. She is getting A's.
Our kid has benefitted so much already with Mathnasium. We started him here just to keep up his math skills, and he's thriving. They have a way of making math fun to learn while also working hard to earn prizes and points. My kid definitely does not enjoy extra-curricular academic activities, for sure, but after a few sessions, he ASKS to go back again. Very grateful for this supportive team of math tutors and teachers!
My son has only been going here a little over a month but I have already seen an improvement in his confidence and skills. I’m very happy with the decision to enroll him at Mathnasium.
Excellent experience. Highly recommend.