The flashcards below were created by user
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on FreezingBlue Flashcards.
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Composite Number
A whole number that has more than two factors
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Prime Number
A number that is only divisible by itself and 1
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Square Number
Any # of tiles that can make a square
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Factor
One of the numbers that are being multiplied to equal a product
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Multiple
The numbers you say when skip counting by a certain number
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How do you know if a number is divisible by 2?
If it is an EVEN number
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How do you know if a number is divisible by 5?
The number has to end with a 0 or a 5.
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How do you know if a number is divisible by 10?
The number has to end in a zero.
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How do you know if a number is divisible by 3?
The sum of its digits is divisible by 3.
- 123
- 1 + 2 + 3 = 6
- 6 is divisible by 3.
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How do you know if a number is divisible by 6?
If the number is divisible by 2 AND by 3!
- 126
- 126 is an even number (is divisible by 2)
- 1 + 2 + 6 = 9 (is divisible by 3)
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