Barron's E-Z Algebra Chapter 1

Front 1

What are behavior rules for numbers called?

Back 1

axioms or postulates

Front 2

What is the commutative property of addition?

Back 2

AKA order doesn't make a difference- property of multiplication.
a + b = b + a

Front 3

What is the commutative property of multiplication?

Back 3

a x b = b x a

Front 4

What is the associative property of addition?

Back 4

AKA the where you put the parentheses doesn't make a difference - property.
(a + b) + c = a + (b + c)
for any three numbers a, b and c

Front 5

What is the associaive property of multiplication?

Back 5

(a x b) x c = a x (b x c)

Front 6

What is the acronym used to memorize the order of operations?

Back 6

PEMDAS
parenthese
exponent
multiplication
division
addition
subtraction

Front 7

If you add together two orm more natural numbers (counting numbers) you will always get

Back 7

a natural number for the answer.

Front 8

If you multiply together tow natural numbers, the result will always be

Back 8

a natural number.

Front 9

What is the expanded way to write
a x (b + c)

Back 9

(a x b) + (a x c)
or
a x b + a x c

Front 10

What does a X 2 also equal?

Back 10

a x 2 = a + a

example
6 x 2 = 6 + 6
or
2(6) = 6

Front 11

What is a therom?

Back 11

A therom is a proven result rather than a assumed one.

Front 12

Any even number can be written how, with n being a natural number.

Back 12

2 x n

Front 13

Any odd number can be written how, with n being a natural number

Back 13

2 x n + 1