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Chapter 3 Math Vocabulary
Chapter 3 Math Vocabulary
8
Mathematics
4th Grade
09/24/2012

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Cards

Term
Commutative Property of Addition
Definition
the order of the numbers in an addition problem does not change the answer

4 + 8 = 12
8 + 4 = 12
Term
fact family
Definition
a group of related facts using the same numbers
Term
Identity Property of Addition
Definition
when zero is added to a number, the result is the number

35 + 0 = 35
0 + 9 = 9
Term
expression
Definition
a group of numbers and symbols that show a mathematical quantity
Term
variable
Definition
a symbol used to represent a number or group of numbers
Term
Associative Property of Addition
Definition
how you group numbers in an addition problem
Term
sum
Definition
the answer to an addition problem
Term
estimate
Definition
an answer that is close to the exact answer
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