click below
click below
Normal Size Small Size show me how
Algebra1: Properties
Includes the name, words, and examples
Question | Answer |
---|---|
Substitution Property of Equality | If two quantities are equal, then one quantity can be replaced by the other; If k = 2, then k + 1 can be written as 2 + 1 |
Commutative Property of Addition | The order in which numbers are added does not change the sum; 3 + 4 = 4 + 3 |
Commutative Property of Multiplication | The order in which numbers are multiplied does not change the product; 3 x 4 = 4 x 3 |
Associative Property of Addition | The way in which numbers are grouped when added does not change the sum; (3+4) + 5 = 3 + (4=5) |
Associative Property of Multiplication | The way in which numbers are grouped when multiplied does not change the product; (3x4) x 5 = 3 x (4x5) |
Additive Identity | When 0 is added to any number, the sum is the number; 3 + 0 = 0 + 3 = 3 |
Additive Inverse | The sum of any number and its additive inverse is 0; 3 + (-3) = 0 |
Multiplicative Identity | When any number is multiplied by 1, the product is the number; 3 x 1 = 1 x 3 = 3 |
Multiplicative Inverse | The product of and its multiplicative inverse is 1; 3/4 x 4/3 = 1 so 3/4 and 4/3 are multiplicative inverses |
Multiplicative Property of Zero | When any number is multiplied by 0, the product is 0; 3 x 0 = 0 x 3 = 3 |
Reflexive Property of Equality | Any quantity is equal to itself; 7 = 7, 2 + 3 = 2 + 3 |
Symmetric Property of Equality | If one quantity equals a second quantity, then the second quantity also equals the first; If 10 = 4 + 6, then 4 + 6 = 10 |
Transitive Property of Equality | If one quantity equals a second quantity and the second quantity equals a third quantity, then the first equals the third; If 3 + 5 = 8 and 8 = 2 (4) then 3 + 5 = 2 (4) |
Distributive Property | To multiply a number by a sum, multiply each number inside the parentheses by the number outside the parentheses; 3 (4 + 2) = 3 x 4 + 3 x 2, (5 + 3) 2 = 5 x 2 + 3 x 2 |