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| any of the symbols used to write numbers: 0,1,2,3,4,5,6,7,8,9 |
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| each number of the sequence |
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| counting numbers and zero |
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| a way of writing a number that shows the value of each digit |
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| digits in a mathematical property change position but answer stays the same |
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| procedure for getting an answer |
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| sum of any number and 0 is equal to the initial number |
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| answer to addition problem |
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| numbers that describe position or order |
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| the result of subtraction |
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| a group of three numbers related by addition & subtraction or multiplication & division |
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| opposite operation that undoes each other such as addition/subraction or multiplication/division |
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| number sentence with equal sign |
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| group of numbers to express a meaning without using words |
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| straight line extending in both directions |
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| exact location in a space |
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| part of a line between two endpoints |
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| part of a line that begins at one endpoint and extends forever in one direction |
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| lines extending left to right |
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| lines extending up and down |
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| line that shows numbers at certain distances |
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| numbers on a number line that are to the left of zero |
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| small marks above each number on a number line |
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| all counting numbers, positive and negative including zero |
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| marks that are used to keep track of a count |
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