Term

Definition
Two numbers whose sum is 0 are additive inverses of one another. Example: 3/4 and – 3/4 are additive inverses of one another because 3/4 + (– 3/4) = (– 3/4) + 3/4 = 0. 


Term
associative property of addition 

Definition
A property for addition that means you can add three numbers in any order and get the same result; EX: 1+(2+3) = (1+2)+3; (3x4)x2 = 3(4x2); (a + b) + c = a + (b + c). 


Term
commutative property of addition 

Definition
A property for addition that means you can add two numbers in any order and get the same result; EX: 50+25=25+50 and 3x4=4x3; a + b = b + a. 


Term

Definition
Two different numbers that have the same absolute value. Example: 4 and – 4 are opposite numbers because both have an absolute value of 4. 


Term

Definition
a pair of numbers whose sum equals zero. One number in this equation will always have a positive sign, while the other number will always have a negative sign. 

