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Questions and Answers
What is the Identity Property of Addition?
What is the Identity Property of Addition?
- The sum of any number and negative one is the original number.
- The sum of any number and zero is the original number. (correct)
- The sum of any number and one is the original number.
- The sum of two identical numbers is twice the number.
The Property of Equality states that if $a = b$, then $b = a$.
The Property of Equality states that if $a = b$, then $b = a$.
True (A)
What does the Associative Property of Addition state?
What does the Associative Property of Addition state?
The sum is the same regardless of the grouping of the addends.
The Additive Inverse of a number is ___ such that the sum equals zero.
The Additive Inverse of a number is ___ such that the sum equals zero.
Match the following properties with their definitions:
Match the following properties with their definitions:
The Commutative Property of Multiplication states that multiplying two numbers yields a different product when the order is changed.
The Commutative Property of Multiplication states that multiplying two numbers yields a different product when the order is changed.
What does the Property of Equality for Addition state?
What does the Property of Equality for Addition state?
The Multiplication Property of Zero states that multiplying any number by ___ yields zero.
The Multiplication Property of Zero states that multiplying any number by ___ yields zero.
The Reflexive Property of Equality states that every element is not congruent to itself.
The Reflexive Property of Equality states that every element is not congruent to itself.
What is the definition of the Addition Property of Zero?
What is the definition of the Addition Property of Zero?
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Study Notes
Properties of Addition
- Identity Property of Addition: Adding zero to any number results in the original number. Example: x + 0 = x.
- Associative Property of Addition: The grouping of numbers does not change the sum. Example: (a + b) + c = a + (b + c).
- Commutative Property of Addition: The order of addition does not affect the sum. Example: a + b = b + a.
- Additive Inverse: Every number has an opposite such that their sum equals zero. Example: a + (-a) = 0.
- Addition Property of Zero: Adding zero to any number leaves it unchanged. Example: a + 0 = a.
- Property of Equality for Addition: Adding the same number to both sides of an equation keeps it true. Example: If a = b, then a + c = b + c.
Properties of Multiplication
- Identity Property of Multiplication: Multiplying any number by one results in the original number. Example: a x 1 = a.
- Multiplicative Inverse: A number multiplied by its reciprocal equals one. Example: a x (1/a) = 1.
- Commutative Property of Multiplication: The order of multiplication does not affect the product. Example: a x b = b x a.
- Associative Property of Multiplication: The grouping of numbers does not change the product. Example: (a x b) x c = a x (b x c).
- Multiplication Property of Zero: Any number multiplied by zero equals zero. Example: a x 0 = 0.
- Property of Equality for Multiplication: Multiplying both sides of an equation by the same number keeps it true. Example: If a = b, then a x c = b x c.
Equality Properties
- Property of Equality: Both sides of an equation must be equal for it to be true. The equals sign acts as a balancing scale. Example: a = a.
- Symmetric Property of Equality: If one value equals another, then the reverse is also true. Example: If a = b, then b = a.
- Reflexive Property of Equality: Every number is equal to itself. Example: a = a.
Distributive Property
- Distributive Property: The product of a number and a sum equals the sum of the products of that number and each addend. Example: a(b + c) = a x b + a x c.
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