### Associative Property Addition

the property that states for 3 or more numbers, their sum is always the same, regardless of grouping

### Associative Property Multiplication

the property that states that for 3 or more numbers, the product is always the same regardless of grouping

### Cummutative Property Addition

the property that states that 2 or more numbers can be added in any order without changing the sum

### Cummutative Property Multiplication

the property that states that 2 or more numbers can be multiplied in any order without changing the product

### Compatible numbers

numbers that are close to the given numbers that make estimation or mental calculation easier

### Distributive Property

the property that states that if you multiply a sum by a number you will get the same result if you multiply each addend by that number and then add the results

### Order of Operations

a rule for evaluating expressions: first perform the operation in ( ), then find the values of numbers with exponents, then perform all multiplication or division from left to right, and then perform all addition or subtraction from left to right (PEMDAS)