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+ and - Vocabulary

TermDefinition
Addend One of the numbers in an addition problem
Difference Answer to a subtraction problem
Sum Answer to addition problem
Estimate A number close to an exact amount
Expression A mathematical combination of number, operations, and variables
Inverse Operation Operations that undo each other; opposite operations
Addition An operation that tells how many things there are when two sets are put together or combined
Subtraction An operation that takes away one quantity from another
Operation Addition, Subtraction, Multiplication, and Division
Variable A symbol or letter that represents an unknown number
Created by: freundk
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