Teas test Questions and Correct Answers
Intergers
✓ ~~~ whole numbers and their opposites no decimals or fractions
Factors and Multiples
✓ ~~~ FACTORS- factors are the two numbers being multiplied in a multiplication
problem. A prime factorization is when you take a number and break it down into
factors over and over until the last numbers are all prime (only divisible by 1 and
itself).
✓ MULTIPLES- Multiples are the result of multiplying a certain number by integers.
Prime numbers
✓ ~~~ a number which can only be divided by itself and 1 which are:
2,3,4,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,87,89,97
prime factorization
✓ ~~~ First factor the number then find and pull out the numbers that are prime
PEMDAS "Order of Operations"
✓ ~~~ Please Excuse My Dear Aunt Sally (Parenthesis, Exponents, Multiply, Divide,
Add, Subtract); order in which an equation is worked out - multiplication and division
as well as adding and subtracting can be interchanged, depending on which comes
first (from left to right) in the equation
GCF (Greatest Common Factor)
✓ ~~~ the greatest number that is a factor of two or more numbers
,LCM (Least Common Multiple)
✓ ~~~ The smallest whole number greater than 0 that is a common multiple of each of
two or more numbers.
Rules if exponents
✓ ~~~ Must always share a base
1. When multiplying you add the exponents
2. When diving you subtracts the exponents
3. A number raised to a fraction power is the same as the root or radical
perfect square
✓ ~~~ These are 1,4,9,25,36,49,64,81,100
Factorials (e.g. 8!)
✓ ~~~ To find the factorial of any integer, multiply it by every positive integer below it,
e.g.:
8x7x6x5x4x3x2x1
Quadratic Formula
✓ ~~~ x = -b ± √(b² - 4ac)/2a
Foil
✓ ~~~ First, Outside, Inside, Last
,physical properties of matter
✓ ~~~ Color, Odor, Shape, Hardness, Texture, Density, Volume, Mass, Weight
Mass
✓ ~~~ A measure of the amount of matter in an object ( sum of the protons, neutrons,
and electrons)
mass of proton
✓ ~~~ 1.67 x 10^-27 kg equal to 1.007 amu
Weight
✓ ~~~ A measure of the gravitational force exerted on an object.
Volume
✓ ~~~ The amount of space an object takes up
Density
✓ ~~~ Mass per unit volume (equals mass/volume)
What's the smallest unit of matter
✓ ~~~ Atom
atomic weight/mass
, ✓ ~~~ protons + neutrons
Ions
✓ ~~~ positively and negatively charged atoms
anions and cations
✓ ~~~ - Anions: negatively charged ions
- Cations: positively charged ions
Isotopes
✓ ~~~ Atoms with the same number of protons but different numbers of neutrons
atomic weight
✓ ~~~ Average of the mass numbers of all isotopes (usually 2x the atomic number)
The atomic nucleus
✓ ~~~ The central part of an atom that contains both protons and neutrons.
Atomic Energy States
✓ ~~~ All atoms strive to thrive lowest energy state
The N shells
✓ ~~~ Energy levels where the electrons are found, the lowest energy leve
