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5 Cards in this Set
- Front
- Back
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What does the commutative property of addition state?
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Commutative property of addition states that when you add numbers order doesnt matter. 8+7=7+8
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What does the associative property of multiplication state?
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The associative property of multiplication state that when your multiplying a series of numbers you can regroup the numbers anyway you like. 5x7x8=7x5x8.
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What is PEMDAS?
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Please Exuse My Dear Aunt Sally is used when solving a problem with mixed operations. Parentheses first, exponents second, Multiply, Divide, Addition, Subtact in that order.
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What is an exponent?
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An exponent is a number that tells you how many times a number is multiplied by itself.
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Rules to help you quickly determine divisibility and factor problems.
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An integer is divisible by 2 if its ones digit is a 2.
An integer is divisible by three if the sum of its digits is divisible by three. A digit is divisible by four if the last two digits form a number divisble by four. A digit is divisible by five if its ones digit is either 0 or 5. A digit is divisible by six if its divisible by 2 and 3. An integer is divisible by nine if both its digitsis divisible by nine. An integer is divisible by 10 if its ones digit is 0. |
