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Algebra- Chapter 1
vocabulary
17
Mathematics
9th Grade
09/28/2010
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Term
additive identity
 Definition
n + 0 = n
Term
multiplicative identity
 Definition
1n = n
Term
additive inverse
 Definition
n + (-n) = 0
Term
multiplicative inverse
 Definition
n (1/n) = 1
Term
commutative property of addition
 Definition
a + b = b + a
Term
commutative property of multiplication
 Definition
ab = ba
Term
associative property of addition
 Definition
a + (b + c) = (a + b) + c
Term
associative property of multiplication
 Definition
a(bc) = (ab)c
Term
distributive property
 Definition
a(b + c) = ab + ac
Term
multiplication property of zero
 Definition
n * 0 = 0
Term
multiplication property of -1
 Definition
n(-1) = -n
Term
Definition of subtraction
 Definition
a - b = a + (-b)
Term
natural numbers
 Definition
1, 2, 3, ...
Term
whole numbers
 Definition
0, 1, 2, 3, ...
Term
integers
 Definition
..., -3, -2, -1, 0, 1, 2, 3, ...
Term
rational numbers
 Definition
values that can be written as a fraction
Term
real numbers
 Definition
includes rational and irrational
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