Mental Math
What is (17 + 26) - 8?
35
What do you call a 6-sided shape?
Hexagon
Which mathematician was on the U.S. $100,000 bill?
Salmon P. Chase
I’m a number you get when you add one dozen and half a dozen. What number am I?
18
What is the smallest positive integer that is divisible by 3, 4, 5, and 6?
What is (48 - 19) + 15?
What is the answer to an addition problem called?
Sum
What Greek mathematician is famous for a theorem about right triangles?
Pythagoras
If you double me and subtract 4, you get 10. What number am I?
7
What is the square root of 225?
15
What is (7 x 8) + 10?
What do you call a number that can be divided evenly only by 1 and itself?
Prime Number
Who is known as the father of geometry?
Euclid
I am less than 20 and a multiple of both 2 and 3. What number am I?
12
A triangle has angles measuring 35° and 75°. What is the third angle?
70
What is (125 + 376) ÷ 5?
100.2
What is the bottom number in a fraction called?
Denominator
Who invented the concept of zero?
Ancient Indians
I am a number. Multiply me by myself and subtract me, you get 72. What number am I?
9
What is the cube of 7?
343
What is (900 - 478) + (36 ÷ 6)?
428
What is the top number in a fraction called?
Numerator
What ancient civilization used a base-60 number system?
Babylonians
A number squared is 144. What is the number?
12
Solve for x: 2(x + 3) = 4x - 6.
6