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Flashcards: Playing with Numbers 32 Flashcards 
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A factor of a number is defined as a whole number that divides exactly into that number, leaving no remainder. This means that every number is a factor of ___ itself. |
Card: 1 / 32 |
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Itself |
Card: 2 / 32 |
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What are the factors of 20? |
Card: 3 / 32 |
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1, 2, 4, 5, 10, and 20  |
Card: 4 / 32 |
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True or False: 1 is a factor of every number. |
Card: 5 / 32 |
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True |
Card: 6 / 32 |
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What property of factors states that every factor of a number divides that number exactly? |
Card: 7 / 32 |
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Every factor of a number divides that number exactly.
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Card: 8 / 32 |
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If a number is 15, what are its pairs of factors? |
Card: 9 / 32 |
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1 and 15, 3 and 5  |
Card: 10 / 32 |
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Fill in the blank: The factors of 6 are ___ and ___. |
Card: 11 / 32 |
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1, 2, 3, and 6 |
Card: 12 / 32 |
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Riddle: I am always smaller than my parent number and can be used to build it. What am I? |
Card: 13 / 32 |
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A factor |
Card: 14 / 32 |
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Fill in the blank: Every number is a multiple of ___. |
Card: 15 / 32 |
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1 |
Card: 16 / 32 |
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True or False: Zero is not a multiple of any number. |
Card: 17 / 32 |
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False. Zero is a multiple of every number. |
Card: 18 / 32 |
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What can be said about the multiples of a number in relation to its factors? |
Card: 19 / 32 |
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Every multiple except zero is either equal to or greater than any of its factors. |
Card: 20 / 32 |
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What is the unique property of the multiples of a number? |
Card: 21 / 32 |
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There is no end to the multiples of a number; they continue indefinitely. |
Card: 22 / 32 |
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Multiples are generated by multiplying a number by what type of values? |
Card: 23 / 32 |
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Whole numbers |
Card: 24 / 32 |
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Fill in the blank: The product of two or more factors is a ___ of each factor. |
Card: 25 / 32 |
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Multiple |
Card: 26 / 32 |
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Fill in the blank: The multiples of 5 include 5, 10, 15, and ___. |
Card: 27 / 32 |
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20 |
Card: 28 / 32 |
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True or False: The number 28 is a perfect number because its divisors 1, 2, 4, 7, and 14 sum to 28. |
Card: 29 / 32 |
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True  |
Card: 30 / 32 |
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Fill in the blank: The sum of the proper divisors of 28, which are ___, equals 28. |
Card: 31 / 32 |
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1, 2, 4, 7, and 14  |
Card: 32 / 32 |
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 Completed! Keep practicing to master all of them. |
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