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Unit 1
Numbers to 1-Billion
Term | Definition |
---|---|
Digit – | any numeral from 0 – 9 |
Expanded form- | the representation of a number as a sum of place values (e.g., 4,253= 4,000+200+50+3 |
Period | a three-digit grouping of whole numbers where each grouping is composed of a ones place, a tens place, and a hundreds place, and each grouping is separated by a comma |
Compare numbers | to consider the value of two numbers to determine which number is greater or less or if the numbers are equal in value |
Counting (natural) numbers | the set of positive numbers that begins at one and increases by increments of one each time {1, 2, 3, ..., n |
Decimal number | a number in the base-10 place value system used to represent a quantity that may include part of a whole and is recorded with a decimal point separating the whole from the part |
Expanded notation | the representation of a number as a sum of place values where each term is shown as a digit(s) times its place value (e.g., 2,543=(2x1,000+5X100+4x10+3x1) |
Numeral | a symbol used to name a number |
Order numbers | to arrange a set of numbers based on their numerical value |
Place value | the value of a digit as determined by its location in a number such as ones, tens, hundreds, one thousands, ten thousands, etc. |
Standard form | the representation of a number using digits (e.g., 985,156,789.78) |
Strip diagram | a linear model used to illustrate number relationships |
Whole numbers | the set of counting (natural) numbers and zero {0, 1, 2, 3, ..., n } |
Word form | the representation of a number using written words (e.g., 1,489=one thousand, four hundred eighty-nine |