# Cpt. 1 Math Vocab

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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

### Base

when a number is raised to a power, the number that is used as a factor

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

### Evaluate

to find the value of a numerical or algebraic expression

### Exponent

the number that indicates how many times the base is used as a factor

### Exponential Form

a number written with a base and an exponent

### Numerical expression

mathematical phrase that includes only numbers and operation symbols

### 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)

### Overestimate

an estimate that is greater than the exact answer

### Underestimate

an estimate that is less than the exact answer

Example: