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14 Cards in this Set
 Front
 Back
Ordinal Number

Numbers used to tell the order of people or objects. (p.4)
Ex.: first, second, third, fourth ... 

DIGIT

The symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 used to write all numbers. (p.6)


PLACE VALUE

The value given to the place a digit has in a number. (p.6)
Ex.: In 3,567, the place value of the digit 5 is hundreds. 

Expanded Form

A number written as the sum of the values of its digits. (p.6)
Ex.: 2, 367 = 2,000 + 300 + 60 + 7 

Standard Form

A way to write a number showing only its digits. (p.6)
Ex.: 2,367 

Word Form

A number written in words. (p.6)
Ex.: 584 = five hundred eightyfour 

PERIOD

A group of three digits in a nu;mber, separated by a comma. Group from right to left.
Ex.: 65,743 

COMPARE

To decide if one number is greater than or less than another number. (p.18)


ORDER

To arrange numbers from least to greatest or from greatest to least. (p.22)


Even Number

A whole number that has 0, 2, 4, 6, or 8in the ones place. (p.24)


Odd Number

A whole number that has 1, 3, 5, 7, or 9 in the ones place. (p.24)


Rounding

Replacing a number with a number that tells about how much or how many to the nearest ten, hundred, thousand, and so on. (p.28)


Decimal Point

A dot used to separate dollars from cents and ones from tenths in a number. (pp. 36, 564)


Dollar Sign

A symbol used to indicate money. (p.36) $
