Arithmetic
Algebra
Geometry
Riddles
Math Trivia
100
What is the product of all numbers on a calculator?
0
100
Solve for x:
x^2 + 4x + 6 = 2
x = -2
100
What is the sum of the measures of the angles in a hexagon?
720 degrees
100
What are 3 positive numbers that have the same sum and product?
1, 2, and 3
100
What is the first number that, when spelled out, has the letter "a" in it?
1000 = one thousand
200
What is the difference between the sum of the first 2003 even counting numbers and the sum of the first 2003 odd counting numbers?
2003
200
The sum of two positive numbers is 5 times their difference. What is the ratio of the larger number to the smaller?
3:2
200
In rhombus ABCD, point P lies on segment AD so that BP is perpendicular to AD, AP = 3, and PD = 2. What is the area of ABCD?
20
200
What is the smallest whole number that is equal to seven times the sum of its digits?
21
200
How many sides does a dodecagon have?
12
300
What is 1 + 2 + 3 + ... + 99 + 100?
5050
300
The sum of two nonzero real numbers is 4 times their product. What is the sum of the reciprocals of the two numbers?
4
300
A 3-4-5 right triangle is inscribed in circle A, and a 5-12-13 right triangle is inscribed in circle B. What is the ratio of the area of circle A to the area of circle B?
25/169
300
How do you add eight 8's to get 1000?
888+88+8+8+8=1000
300
Who discovered calculus? (bonus points if you name both)
Isaac Newton and Gottfried Leibniz
400
What is the last digit of 71234?
9
400
The greatest prime number that is a divisor of 16384 is 2 because 16384 = 2^14. What is the sum of the digits of the greatest prime number that is a divisor of 16383?
10
400
Triangle ABC is equilateral with side length 6. Suppose that O is the center of the inscribed circle of this triangle. What is the area of the circle passing through A, O, and C?
12pi
400
If a hen and a half lay an egg and a half in a day and a half, how many eggs will half a dozen hens lay in half a dozen days?
two dozen = 24
400
What is the only temperature that is the same in Fahrenheit and Celsius?
-40 degrees
500
What is 111111111 x 111111111?
12345678987654321
500
The infinite product 
evaluates to a real number. What is that number?
500
What is the degree measure of the acute angle formed by lines with slopes 2 and 1/3?
45 degrees
500
I add six to eleven and get five. Why is this correct?
It's on a clock / in mod 12
500
What theory states that every even number greater than 2 is the sum of two prime numbers?
Goldbach's Conjecture