Algebra
Number Theory
Counting
Riddles
Trivia
100

Solve 3x - 10 = 11

x = 7

100

List all factors of 30

1, 2, 3, 5, 6, 10, 15, 30

100

My closet has 8 shirts and 3 pants. How many ways can I get dressed in the morning?

24

100

If there are three apples and you take away two, how many apples do you have?

2 apples

100

Name a mathematician.

Answers may vary.

200

Solve x + 2x + 3x + 4x = 100

x = 10

200

What is the smallest 3-digit number that is divisible by 3?

102

200

I want to rank three types of chocolate: milk, dark, and extra dark, in a list from best to worst. How many ways can this be done?

6

200

What goes through cities and fields, but never moves?

A road

200

There is an airline named after a mathematical symbol. Some say its quite the triangle. 

Delta

300

Find all solutions to x^2 - 81 = 0

x = 9, -9

300

Find the least common multiple of 12 and 16

48

300

I misspelled the word "fish" on my spelling test, but I used all the correct letters. How many ways could I have misspelled the word?

23

300

What five-letter word becomes shorter when you add two letters to it?

short

300

Who is commonly known as the "Father of Mathematics"?

Archimedes

400

Solve 1/(x-1) + 2x/(x-1) = 5

x = 2

400

If the 4 digit number 21A8 is divisible by 12, what digit is A?

4

400

I want to order two different flavors of ice cream at Baskin-Robbins, with 31 flavors in total. How many ways can this be done?

465

400

I'm light as a feather, yet the strongest man can't hold me for more than 5 minutes. What am I?

A breath

400

Which ancient civilization is credited with developing the first known place-value number system?

The Babylonians

500

Find xy if 2x - 3y = 8 and 4x + 3y = -2

-2

500

What is the remainder when 2^50 is divided by 11?

1
500

I am in a room with 8 other people. How many ways can I divide them into 2 equal-sized teams?

35

500

What is so fragile that saying its name breaks it?

Silence

500

Which mathematician’s last theorem remained unsolved for over 350 years until it was proved by Andrew Wiles in 1994?

Fermat's Last Theorem

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