Algebra
Geometry
Probability
Math Riddles
Graphs
100
Factor 6x2+13x+6.
What is (6x+1)(x+6)?
100
What is 37 cm?
100
A spinner has 8 sections. Each section is labeled 1,2,3,4,5,6,7,8, respectively. What is the probability that the spinner lands on a multiple of 3?
What is 1/4?
100
What is the next number in the series?
7645, 5764, 4576…
What is 6457?
100
What shape is this equation?
y=x2-85x+92387
What is a parabola?
200
(x2+x-6)/(x2-7x+10)
What is (x+3)/(x+5)?
200
A heptadecagon is a 17-sided polygon. If a regular heptadecagon has perimeter 306 cm, what is its side length?
What is 18 cm?
200
Three coins are tossed up in the air, one at a time. What is the probability that two of them will land heads up and one will land tails up?
What is 3/8?
200
I am 4 times as old as my daughter. In 20 years time I shall be twice as old as her. How old am I?
What is 40 years old?
200
What is the slope of this equation?
2(y+2x)=y-2x+85
What is -6?
300
2(x+2)=64/2. Find x
What is 3?
300
Triangle ABC is an isosceles triangle with AB=AC. Point D is on side BC such that BD=DC. The line segment AD is drawn. The measure of angle BAC is 40 degrees.
- Find the measure of angle ABC.
- Find the measure of angle ADB.
(hint: draw a diagram and use isosceles triangles)
What is 70 degrees and 105 degrees?
300
Two dice are thrown. What is the probability that the product of the two numbers is a multiple of 5?
What is 11/36?
300
20+20+20=60. How can you make 60 again using the same number 3 times, but it is NOT 20?
What is 55+5?
300
What is the distance between these two points?
(-2,4) (2,1)
What is 5?
400
Simplify:
(x2-4)x(x+2)/(x-2)x
-3(4x+6)/12(x+1)+6
What is 0?
400
The height of a man and his shadow form a triangle similar to that formed by a nearby tree and its shadow. What is the height of the tree?
What is 40 feet?
400
What is the probability that a randomly selected positive integer greater than 2 and less than 18 will be prime?
What is 2/5?
400
In a stable there are people and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable?
What is 8 men and 14 horses?
400
What shape is this graph?
x2+225+y2=-2(7x+y)
What is a circle?
500
32x+1+4(3x)-15=0
use a calculator to find x (round to the nearest thousandth).
(hint: use natural logarithms)
What is 0.465?
500
Triangle ABC has an area of 40 units2
. Point D is on side AC, and AD:DC = 3:1.
What is the area of triangle BDC?
(hint: draw a diagram)
What is 10 units2?
500
When 
fair standard 
-sided dice are thrown, the probability that the sum of the numbers on the top faces is 
can be written as
where 
is a positive integer. What is ?
What is 84?
500
How can you write down eight 8’s in order to add up to 1,000?
What is 888+88+8+8+8?
500
What is the value of y when x equals -12 in this equation?
y2=x-1+4
what is 3i?