Teas Math 2

Integer

A positive or negative whole number including zero

Prime number

Any number greater than 1 that only has factors 1 and itself

Composite number

Anything that’s not a prime number

Rational number

Integers, decimals, fractions, any terminating or repeating decimal

Irrational number

Any number that can not be written as a fraction or decimal

Like pi

Real numbers

Set of all rational and irrational numbers

Common factor

A number that divides exactly into two or more numbers

Common factor of 12 and 15 is 3 and 1

a^1 = a

Any number to the power of 1 is equal to itself

1^n = 1

The number one raised to any power is equal to 1

a^0 = 1

Any number raised to the power of 0 is equal to ine

a^n x a^m = a^n+m

Add exponents to multiple powers of the same base mumber

A^n divided by a^m = a^n-m

Subtract exponents to divide powers of the same base number

(a^n)^m = a^nxm

When a power is raised to a power, multiple the exponents

(a x b)^n = a^n x a^b (same with division)

Multiplication or division inside parenthesis can be raised to a power

A^-n = a/a^n

A negative exponent is the same as the reciprocal of a positive integer

Perfect roots from 1-100

1,4,9,16,25,36,49,64,81,100

what happens when there is multiplication or division multiple times in an equation?

Perform from left to right

Word forms for =

Equal, is, was, will be, has, costs, gets to, is the same as, become

Word form of multiplication

Times, of, multiplied by, product of, twice, double, halves, triples

Word form of division

Divided by, per, ratio of/to, out of

Word form of addition

Plus, added to, sum, combined, and, more than, totals of

Word of subtraction

Subtracted from; less than, decreased by, minus, difference between

Word form of x

What, how much, original price, how many, a number, a variable

How to find percent increase?

new-og/og

Slope

M = y2-y1/ x2-x1

Forms of linear equations

Standard : Ax+ By = C

Slope intercept : y = mx + b

Point slope form : y-y1 = m(x-x1)

Two point form slope = slope (with different points)

How many oz in a cup?

8 oz

How many cups in a pint?

2 cups in 1 pint

How many cm in an inch,

2.54

How many lbs in a kg?

2.2 lbs

How many ml is an oz?

30ml

How many cups in a pint?

2 cups

How many pints in a quart?

2 pints

How many quarts in a gallon?

4 qts

How many oz in a lb?

16oz

How many pounds in a ton?

2000 = 1 ton

How many km in a mile?

1.61 km