Math Trivia
Mental Math
Logic Puzzles
Geometry
Random
100
first composite natural number
4
100
2+2
3
100
The day before two days after the day before tomorrow is Saturday. What day is it today?
Friday
100
definition of a rhombus
4 sided shape with equal sides
100
What is Mr. Jacobs's classroom number?
231
200
Branch of math that is named after the words "Earth" and "measure" in Greek
Geometry
200
(8+9)*8
136
200
You own a farm but you have very bad managment so you've somehow forgotten how many chickens and rabbits you have. After hours of counting, you find that there are 20 heads and 76 feet in total. How many chickens and many rabbits do you have?
2 chickens, 18 rabbits
200
formula for the volume of a sphere
4/3 * π * r^3
200
Touch grass
( ͡° ͜ʖ ͡°)
300
Well-known rule that can be easily used to test if a number is divisble by 3
Add all the digits and check if that sum is divisible by 3 (e.g. 59049 -> 27, and since 27 is divisible by 3 so is 59049)
300
17+(5*28)/7
37
300
How many blocks are there in total? Remember that blocks cannot "float"
37
300
If ST=6, PY=5, what is the volume of this pyramid? The pyramid's lateral faces are all isosceles congruent triangles and the base is a square.
48
300
In an exam, for each correct answer, an exam taker will receive 8 points; for each wrong answer, the exam taker will lose 5 points. Duke answered 18 questions in total and received 92 points. How many questions did he get wrong?
4
400
the mathematical constant e ~ 2.718 is named after _____
Euler
400
9*11*13
1287
400
You have to guess a four digit number. Here are the clues: 1234 has two correct digits in the right place, 8901 has two correct digits, both in the wrong place, 3587 has one digit in the right place, and 1001 has no correct digits. What is the number?
9284
400
A rectangle has a width of 1 and a height of unknown length x > 1. When the rectangle is cut in half across its long side, the two new rectangles are similar to the original rectangle. What is x?
sqrt(2)
400
log2(3) * log3(5) * log5(7) * log7(8)?
3
500
The time in years it took to prove Fermat's last theorem since it was first conjectured. Closest answer wins
358
500
11^4
14641
500
What are the missing numbers (including red box) and where do they go?
7 at the top, 9 a the left, 3 at the bottom, 8 at the bottom right
500
In the image above, the 4 circles have a radius of 1 and the centers form a square. What is the shaded area?
2π - 4
500
Alice and Bob take turns flipping coins. The winner is the first player to land a heads wins, and Alice flips first. Bob claims that this is unfair, and insists that he flips two times after each time that Alice rolls. If they follow Bob's rules, what it is the probability that Alice still wins?
4/7