The PROM² Experience

Master the format, understand the rules, and prepare for an extraordinary mathematical journey.

Competition Format

Challenge Structure

Individual Round

A 20-question, 45-minute examination at the Math Kangaroo level. Multiple choice format focusing on mental agility and quick thinking.

Team Round

A 20-question, 30-minute fill-in-the-blank examination. Teams of 3 collaborate to solve complex problems through strategic cooperation.

Official Rules

Prohibited Items

  • No computational devices (calculators, math books, notes, etc.).
  • No drawing aids (compasses, protractors, or rulers).
  • No communication devices (smartphones, tablets, or secondary laptops).

Answer Conventions

  • Fractions must be in lowest terms (e.g., 7/3, not 14/6).
  • Radicals must be simplified and denominators rationalized (e.g., 2√3).
  • Answers must be exact; decimal approximations (like 3.14 for π) are not accepted.

Mathematical Conventions

  • Factors of an integer refer to positive integer factors only (e.g., 6 has factors 1, 2, 3, 6).
  • Prime numbers refer to positive primes only.
  • The notation means a 3-digit integer 100a+10b+c.
  • A polygon named ABCD is a quadrilateral with vertices A, B, C, and D occurring in that order.
  • 0 is not a natural number.

The PROM² Directive

"It goes without saying, but just to be clear, all decisions made by the PROM² for Girls judges are final."

Prizes & Gifts

Swipe to view full prize table
Placement Award Amount
1st Prize $500
2nd Prize $300
3rd Prize $100
4th - 10th Prize $50 each

For Parents

While your daughter is playing math, we invite you to take a coffee break with us. In a breakout room, some of us will be available to meet with you online to talk about the challenges of incorporating transformational technology like AI into education in ways that most benefit a growing brain and will augment, not substitute for, critical thinking habits. Once your child registers for PROM2 for Girls, we'll send you the link to our coffee break session. Feel free to bring a cup of your favorite drink and settle in with some good conversation with kindred spirits.

Frequently Asked Questions

I have a question about PROM2 for Girls. What do I do?

Contact us! The fastest way to reach us is to click this: prom2@prismsus.org

When do I need to register by?

We accept registrations until the day before the event but strongly recommend that you register as soon as you can. There is a team round, so gather your team members and sign up. Don't worry if you have no other team members - just register and we will assign you to a team.

Will this event be in person or online?

This is an online event. We will have a lot of fun on Zoom.

What is origami?

Origami is the art of paper folding. It is fun and beautiful! You will find that there are a lot of mathematical elements in origami. That is why it is one of the activities in PROM2 for Girls!

How many participants in each team?

Each team consists of exactly 3 participants.

How can I find a team?

The best way is to invite your good friends who are interested in mathematics to participate in the competition. We believe that solving problems together with friends is the most fun. But if you don't have a team, don't worry - we'll assign you to one.

Can I register a team and find my teammates later?

Yes, you can register a team first. You can edit the roster of your team afterwards.

May I participate without a team?

Yes, you can apply as an individual competitor, and we will assign you to a team.