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Math Vocabulary Test 7
Vocab. words and definitions from Saxon & Crosswalk lessons
25
Mathematics
5th Grade
12/12/2011

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Term
exponent
Definition
a number that tells how many times a given number is used as a factor
Term
power
Definition
a number that implies the operation of repeated multiplication
Term
regroup
Definition
to rename a number for use in addition or subtraction
Term
Additive identity property of 0
Definition
the sum of any number and 0 is that number
Term
Commutative property of addition
Definition
the order of addends can be changed; the sum does not change
Term
Associative property of addition
Definition
addends can be grouped in different ways; the sum will be the same
Term
estimate
Definition
an answer that is close to the exact amount
Term
Commutative property of multiplication
Definition
changing the order of factors does not change their product
Term
multiple
Definition
a product of counting numbers and another number
Term
Property of zero for multiplication
Definition
zero times any number is zero
Term
Distributive property of multiplication over addition
Definition
X (multiplying) a sum by a number gives same result as X (multiplying) each addend in the sum by that number and + (adding) products
Term
Multiplicative identity property of 1
Definition
the product of any number and 1 is equal to the inital number
Term
Associative property of multiplication
Definition
factors can be grouped in different ways but the product will be the same
Term
remainder
Definition
an amount left after division
Term
exact number
Definition
a number that has not been rounded
Term
round
Definition
to express a calculation or measure to a specific degree of accuracy
Term
round number
Definition
a whole number that ends with one or more zeros
Term
expanded notation
Definition
a way of writing a number as a sum of the products of digits and place values of digits
Term
average
Definition
number found when sum of 2 or more numbers is divided by number of addends in the sum; mean
Term
partial products
Definition
a product resulting from multiplying one factor by one digit of the other factor
Term
inverse operation
Definition
operations that undo each other, addition/subtraction and multiplication/division
Term
mixed number
Definition
a number that has a whole number part and a fraction part
Term
decimal places
Definition
places to the right of the decimal point
Term
place value
Definition
the value of a digit based on its position within a number
Term
common fraction
Definition
a fraction with whole number terms
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