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5 Cards in this Set
- Front
- Back
decimal
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a number written using the base-ten place-value system. Each place value is ten times the place value to its right
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commutative property of addition
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when you can add the numbers in any order
2 + 5 = 5 + 2 |
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leading digit
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the first non-zero digit in a number
the leading digit of 725 is 7 the leading digit of .000357 is 3 |
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associative property of addition
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the value of the sum does not depend on how the numbers are grouped
(2 + 5) + 3 = 2 + (5 + 3) |
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place value
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the place value of each digit in a number depends on its position within the number
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