Math Problems

Math History

Significant Numbers

Popular Formulas

Math Riddles

100

What is the product of 7 and 9?

what is 63

100

who is famous for an apple falling on his head?

what is Isaac Newton

100

the first 5 digits of pi

what is 3.14159

100

a^2+b^2=c^2

what is pythagoras thereom

100

I am a number. If you add 5 to me, you get a number greater than 10. If you subtract 5 from me, you get a number less than 5. What number am I?

what is 6, 7, 8, or 9

200

What is the result of 48 divided by 6, multiplied by 4?

what is 32

200

Which mathematician is known for his famous theorem about right-angled triangles?

what is Pythagoras

200

forever and ever and ever and ever and ever and ever

what is infinity

200

y = mx + b

what is Slope Intercept of a line

200

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

what is 3 apples

300

5x - 2 = 12

what is 2

300

who discovered pi?

what is Archimedes

300

What is are the first 3 digits of Eulers number? (e)

what is 2.718

300

pi * r^2

what is Area of a Circle

300

An athlete can jump FOREVER. However, every time she jumps, she goes half as far as her prior jump. On her very first jump, she goes half a foot. On her second jump, she goes a quarter of a foot, and so. How long will it take her to get a foot away from her starting point?

what is NEVER

400

144/81 * 27/84

what is 4/7

400

who invented calculus?

what is Gottfried Leibniz

400

square root of -1

what is i

400

e^pi*i +1 = 0

what is Eulars Identity

400

I am an odd number. Take away one letter, and I become even. What number am I?

what is 7

500

What is the 10th term in the arithmetic sequence: 2, 5, 8, 11, ...

what is 29

500

Who is often referred to as the "Father of Algebra"?

what is Muhammad ibn Musa al-Khwarizmi or Euclid

500

a whole number in math that is also considered very special

what is 0 or 1

500

E = mc^2

what is Einstein's Mass-Energy Equivalence

500

I am a three-digit number. My tens digit is five more than my ones digit. My hundreds digit is eight less than my tens digit. What number am I?

what is 803