Cpt. 1 Math Vocab

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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

Base

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

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

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

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