Alg/NT
Combo/Geo
Memorization
Math History
Spelling Bee
100

The least common multiple of 72 and 96

What is 288?

100

Aishwarya has an army of origami penguins, all of which are blue, green, or purple. Of her penguins, 1/5 of them are blue, 1/3 of them are green, and 21 are purple. The number of penguins Aishwarya has.

What is 45?

100
The quadratic formula

What is x = (-b +- sqrt(b^2 - 4ac)) / 2a

100

This ancient civilization used hieroglyphs to represent numbers

What is ancient Egypt?

100

The spelling of oy-lr, an 18th century mathematician and physicist 

Who is Euler? (known for a lot of stuff) 

200

Given that the numbers 199 and 499 are prime, the sum of all positive integer divisors of 199*499 = 99301.

What is 100,000?

200

The largest angle in a quadrilateral with angles in ratio 1 : 4 : 3 : 4

What is 120 degrees?

200
Value of sin(15)

(sqrt(6) - sqrt(2)) / 4

200

This ancient Greek mathematicians wrote The Elements

Who is Euclid?

200

The spelling of ai-SAA-suh-leez, when two sides of a triangle are equal.

What is isosceles? 

300

Given a + b = 6 and ab = 7, the value of a^3 + b^3

What is 90?
300

Three points A, B, C are chosen on a sphere such that AB = 12; BC = 16; CA = 20 and the plane which passes through A, B, C passes through the center of the sphere. The radius of the sphere.

What is 10?

300

The first 4 digits of e

2.718

300
The 2026 IMO will be the __th IMO in history.
What is 67?
300

The spelling of taa-luh-mee, a roman mathematician and astronomer 

Ptolemy (known for Ptolemy's theorem in geometry)

400

Given the number 5X0Y0 is divisible by 132, the value of X*Y.

What is 64?

400

The number of distinct simplified rational numbers between 0 and 1 exclusive where the denominator is 6 or less

What is 11?

400

(Quadratic Reciprocity)

When m, n are distinct odd prime numbers, the value of (m/n) (n/m), where (m/n) denotes Legendre symbol 

(-1)^((m-1)/2 * (n-1)/2) 

400

This IMO Gold Medalist was elected president of a European country

Who is Nicușor Dan?

400

Spelling of FOR-ur-baak, a German geometer 

Feuerbach (known for Feuerbach point in geo)

500

Given that positive real numbers x, y, z satisfy,

xyz = 6

4yz − x = 5

y + z = 4

The value of x^2 + y^2 + z^2 

What is 21?

500

In a triangle △ABC with AB = 10 and AC = 21, point E is chosen on AC such that CE = 15 and BE = 8. Let D the base of the altitude from A to BC then let AD intersect BE at H. The length of HE.

What is 45/4?

500

a, b, c, d are complex numbers such that |a| = |b| = |c| = |d| = 1. The expression for the intersection of line through a, b and line through c, d

(ab(c+d) - cd(a+b)) / (ab - cd)

500

The only Millennium Prize problem to have been solved

The poincaré conjecture

500

The spelling of jig-mun-dee

What is zsigmondy? (known for zsigmondy's theorem in NT)