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# Algebra 1 Test

### Chapter 2

Whole numbers These are the number 0, 1, 2, 3,(no negatives).
Rational number This is a number that can be written as a quotient of two integers, (ratio then fraction).
Absolute value This is a number a is the distance between a and 0 on the number line.
Conditional statement This has a hypothesis and a conclusion.
Commutative of addition The order in which you add 2 numbers doesn't change its sum (3+2=2+3).
Commutative of multiplication The order in which you multiply 2 numbers doesn't change the product (10x2=2x10).
Associative of addition The way you group 3 numbers in a sum doesn't change the answer (1+2)3= 1+(2+3).
Associative of multiplication The way you group 3 numbers in a product doesn't change the answer (4x5)2=4(5x2).
Identity of addition Adding doesn't change the number zero to a number (5+0=5).
Identity of multiplication Multiplying by one doesn't change a number (10x1+10).
Inverse of addition The sum of a number and its inverse is equal to zero (-6+6=0).
Property of zero The product of zero and a number is always zero (20x0=0).
Property of -1 The product of -1 and a number, makes the number its opposite (7x-1=-7) or (-8x-1=8).
Multiplicative inverse The product of a number and its reciprical equals one (2 divided by 5 x 5 divided by 2 = 10 divided by 10.
Coefficients These are numbers in front of variables.
Created by: sheeba1cindy
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