Whole Numbers

Dividing

Not Commutative

r

Altering the order of numbers will yield different results.a/b =/= b/a

Dividing by One

r

Any non-zero number divided by itself is one.n/n = 1Any number divided by one remains unchanged.n/1 = n

Dividing by Zero

r

Zero may be divided by any non-zero number, and will always result in zero.0/n = 0No number may be divided by zero; the result is undefined.n/0 = ???

Remainder

r

A remainder occurs when whole numbers do not divide evenly, and is signified with an R.13/4 = 3R1

Not Distributive

Order of Operations

1. Parentheses

r

Operations contained between the symbols ( and ) must supercede other operations.

2. Exponents

r

Numbers with exponents must be multiplied before they may be used for other operations.

3. Multiply and Divide

r

After parentheses and exponents have been fulfilled, multiplication and division equally share the next priority; they must be fulfilled from left to right.

4. Add & Subtract

r

After all other operations have been completed, addition and subtraction equally share the lowermost priority; they must be fulfilled from left to right.

Terms

Constant Term

Variable Term

Like Terms

Combining Like Terms

Adding

Commutative Property

r

Numbers may be added in any order with the same result.a + b = b + a

Identity Property of Zero

r

Any number added to zero will always result in the original number.a + 0 = a

Associative Property

r

Added numbers may be grouped in any way with the same result.(a + b) + c = a + (b + c)

Distributive Property

r

Because it represents repeated addition, multiplication may be distributed over other addition separated by parentheses.3(2 + 3) = (2 + 3) + (2 + 3) + (2 + 3)Therefor,a(b + c) = ab + ac

Subtracting

Not Commutative

r

Altering the order of numbers will yield different results.a - b =/= b - a

Distributive Property

r

Because it represents repeated addition, multiplication may be distributed over subtraction separated by parentheses.3(4 - 3) = (4 - 3) + (4 - 3) + (4 - 3)Therefor,a(b - c) = ab - ac

Multiplying

Commutative Property

r

Changing the order of factors does not change the product.ab = ba

Associative Property

r

Changing the grouping of factors does not change the product.(ab)c = a(bc)

Multiplication Property of Zero

r

Any number multiplied by zero results in zero.n x 0 = 0

Identity Property of One

r

Any number multiplied by one will result in the original number.n x 1 = n

Exponents

r

Repeated multiplying of the same number may be reduced to a superscript of the amount of times the number appears in the equation. This is read, "to the [#]th power."n x n x n = n^3

Squared

r

Multiplying a number by itself once.n x n

Cubed

r

Multiplying a number by itself three times.n x n x n

Not Distributive