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10 Cards in this Set

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Expressing a number to the nearest ten, hundred, thousand and so on.
5,365 rounds to 5,000
Rounding
An approximate rather that exact number. An educated guess.
Estimate
A number written as words.

four million, two hundred thirty seven thousand, five hundred eighty three.
Word form
A number written as the sum of the values of its digits.

4,000+500+20+5=4,525
Expanded form
A number written with commas separating groups of three digits.

421,523,638
Standard form
A group of three digits separated from other digits of a number by a comma
Period
A number written with words naming the periods.

4 million, 335 thousand,894
Short word form
Any of the ten symbols 0,1,2,3,4,5,6,7,8,or 9.
Digits
A number greater than zero.
Positive number
A number less than zero.
Negative Number