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16 Cards in this Set
- Front
- Back
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Changing the grouping of factors does not change their product.
Example: For all numbers a, b, and c, a x( b x c) = (a x b) x c. |
Associative Property of Multiplication
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Changing the order of factors does not change their
product. Example: For all numbers a and b, a x b = b x a. |
Commutative Property of Multiplication
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Numbers that are easy to work with mentally and are used in place of actual numbers to get an estimate.
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Compatible Numbers
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When two addends are multiplied by a factor,
the product is the same as if each addend was multiplied by the factor and whose products were added. Example: a x( b + c)=( a x b) + ( a x c) |
Distributive Property
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One number is divisible by another if the quotient
is a whole number and there is a remainder of 0. |
Divisible
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A number close to an exact amount. Tells about how much or about how many.
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Estimate
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Two or more numbers that are multiplied to give a product.
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Factor
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Estimation by looking at the digits in
the greatest place of each number. Example: 3,745 would be 3,000 |
Front-End Estimation
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The property which states that the product of any number and 1 is that number.
Example: a x 1 =1 x a = a |
Identity Property of Multiplication
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Rules for performing operations in order to simplify expressions. It consists of:
• parentheses • exponents • multiplication and division, from left to right • addition and subtraction, from left to right. |
Order of Operations
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Ex.) 48 x 15 =
(40 + 8) x (10 + 5) = 40 x 10 = 400 40 x 5 = 200 8 x 10 = 80 8 x 5 = 40 |
Partial Products
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The answer in division problem.
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Quotient
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The number that is left over after one whole number is divided by another.
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Remainder
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The property which states that the product of any number and 0 is 0.
Example: a x 0 = 0 x a = 0 |
Zero Property of Multiplication
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The number that the dividend is divided by.
Example: 56 ÷ 7 = 8 the answer is the 7 |
Divisor
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The number that the divisor is divided into.
Examples: 56 ÷ 7 = 8 the answer is 56 |
Dividend
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