Unit 1 Math Vocabulary

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compare numbers

Back

to consider the value of two numbers to determine which number is greater or less or if the numbers are equal in value

Front

counting (natural) numbers

Back

the set of positive numbers that begins at one and increases by increments of one each time {1, 2, 3, ..., n}

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decimal number

Back

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

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digit

Back

any numeral from 0 – 9

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expanded form

Back

the representation of a number as a sum of place values (e.g., 985,156,789 as 900,000,000 + 80,000,000 + 5,000,000 + 100,000 + 50,000 + 6,000 + 700 + 80 + 9; 985,156,789.78 as 900,000,000 + 80,000,000 + 5,000,000 + 100,000 + 50,000 + 6,000 + 700 + 80 + 9 + 0.7 + 0.08)

Front

expanded notation

Back

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., 985,156,789 as (9 × 100,000,000) + (8 × 10,000,000) + (5 × 1,000,000) + (1 × 100,000) + (5 × 10,000) + (6 × 1,000) + (7 × 100) + (8 × 10) + (9 × 1); 985,156,789.78 as 9(100,000,000) + 8(10,000,000) + 5(1,000,000) + 1(100,000) + 5(10,000) + 6(1,000) + 7(100) + 8(10) + 9(1) + 7(0.1) + 8(0.01))

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numeral

Back

a symbol used to name a number

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order numbers

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to arrange a set of numbers based on their numerical value

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place value

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the value of a digit as determined by its location in a number such as ones, tens, hundreds, one thousands, ten thousands, etc.

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standard form

Back

the representation of a number using digits (e.g., 985,156,789.78)