standard form of a number
the "regular" way to write a number using only digits
expanded form of a number
an addition problem showing the value of each digit of a number
value of a digit
the worth of a digit because of the place in which it is located in a number
the individual numbers used to form a number
the position in which a digit is written in a number
the numbers added together in an addition problem
the answer to an addition problem
the answer to a subtraction problem difference
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