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### 15 Cards in this Set

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 Ordinal Numbers numbers used to order people or objects (first, second, etc.) digit the symbols 0, 1, 2, etc. used to write numbers place value the value given to the place that a digit has in a number (In 346, the place value of the 3 is hundreds) expanded form a number written as the sum of the value of the digits (293 = 200+90+3) standard form a way to write a number showing only its digits (125) word form a way to write a number using words (34 = thirty four) period a group of 3 digits separated by a comma compare decide if one number is greater or less than another number number line a line that shows numbers in order using a scale order organize numbers from greatest to least or least to greatest even number a whole number that has 0, 2, 4, 6, or 8 in the ones place odd number a whole number that has 1, 3, 5, 7, or 9 in the ones place rounding use a number that tells about how many or how much to the nearest 10, 100, or 1000 decimal point a dot used to separate dollars from cents and ones from tenths dollar sign a symbol used to show money (\$)