Montgomery School

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Summer Math Skills

To help children maintain their progress and continue learning, students in grades 2-8 are required to study their math skills over the summer. According to the Harvard Graduate School of Education, on average, students lose approximately 2 months of learning in math over the summer and it takes weeks of class time, or more, to make up for that loss. Our goal is to help students keep their math skills sharp and give them an academic advantage that will catapult them into the new school year.

Lower School

Middle School

How to Access Deltamath for Middle School

1) Go to

2) Click "register" near the center of the screen

3) Enter the code 88SC-665N 

4) Register with a Gmail account (preferably your Montgomery one)

5) Log in to DeltaMath using your registered Gmail account and click on your grade's assignment

** A couple of notes -- The 5 required problems per category is simply the default placeholder, feel free to complete as many examples as you'd like. Also, the assignments are meant to accommodate both "M" and "L" students, so there may be some concepts that you are unfamiliar with, but feel free to challenge yourself!