PEMDAS
What Does the P in PEMDAS stand for?
Parenthesis
He found the formula for the length of the hypotenuse of a right triangle, a2+b2=c2.
Who is Pythagoras?
MENTAL MATH
37 + 68 =
105
MENTAL MATH
7 x 15
105
This number system is currently the most widely used
What are Arabic Numerals?
Find the mode of the following numbers:
2, 3, 4, 5, 4
4
What operation would I solve first in this problem:
7x10-2=
Multiplication
A prolific Swiss mathematician who discovered, among many other things, the relationship V-E+F=2 between the vertices, faces, and edges of a polyhedra.
Who is Leonhard Euler?
MENTAL MATH
155 + 245 = ?
400
MENTAL MATH
500 x 5 = ?
2,500
They proved Fermat's Last Theorem.
Who is Andrew Wiles?
In a library, the number of books on each of 4 selves is:
45 56 39 60
What is the mean number of books on each shelf?
50 books
What would I solve first in this equation?
8+10-6=
8+10 because addition and subtraction are related so you solve them with whatever comes first from left to right
A popular and well-known theoretical physicist who discovered the equation e=mc2 about energy and the speed of light.
Who is Einstein?
MENTAL MATH
98 + 499 =
597
76 x 15 = ?
1,140
This set of positive integers satisfies the equation, a squared + b squared = c squared.
What are Pythagorean triples?
The weekly wages of 6 employees are
$105, $75, $89, $67, $126, $75, $33
What is the median wage?
$75
Solve.
4x12+(8/4)=
50
He was a Scottish mathematician who discovered logarithms, and furthermore the equation log xy = log x + log y.
Who is John Napier?
MENTAL MATH
30 + x = 951
x = 921
MENTAL MATH
8 x 9 x 2 =
144
In 1931, Godel published these theorems showing that there will always be statements that can neither be proved or disproved.
What are the Incompleteness theorems?
A die is tossed. What is the probability that a number less than 5 appears?
4/6
Solve:
(3 + 30) * (3 x 2)
An Irish mathematician whose life was often filled with tragedy, he developed the equation ijk=-1 along with the formation of the quaternions.
Who is Sir William Rowan Hamilton?
MENTAL MATH
345,134 + 56,134 =
401,268
345 x 5 =
1725
An Italian mathematician who was the first to discover the general solution to the cubic equation.
Niccolo Tartaglia
A packet contains 400 seeds.
There is a 7 in 10 chance of successful growth.
How many of the seeds should grow successfully?
280 seeds