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Math Vocabulary Tests 1 & 2
Vocab. words and definitions from Saxon & Crosswalk lessons
21
Mathematics
5th Grade
09/21/2011

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Term
expanded form
Definition
a way of writing a number that shows the value of each digit
Term
base-ten numeral
Definition
a way of writing a number that shows only its digits
Term
number name
Definition
a way of writing numbers using words
Term
ordinal numbers
Definition
numbers that describe position or order
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
factors
Definition
a number that can be multiplied by another number to get a product
Term
multiple
Definition
a product of counting numbers and another number
Term
product
Definition
the result of multiplication
Term
Property of zero for multiplication
Definition
zero times any number is zero
Term
equation
Definition
a number sentence with an equal sign
Term
addends
Definition
numbers that are added together
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
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