Teacher Name: Demo Name:__________________________
Practice Problems Period: ________ Date: ____________

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Name the Property (example: associative property of multiplication)

1)  (1 · (2x - 1)) · -17 = 1 · ((2x - 1) · -17 )


2)  1 · (-10x -6 ) = (-10x -6 )
3)  11 -11 = 0


4)  -13 · 1 = -13
5)  (-18x -10 ) · (-7x - 10 ) = (-7x - 10 ) · (-18x -10 )


6)  (-16 -11 ) · -4 = -16 · -4 -11 · -4
7)  (-12 -21 ) · -12 = -12 · -12 -21 · -12


8)  -19/23 · 23/-19 = 1
9)  (-10x - 17 ) · 1 = (-10x - 17 )


10)  18 + 2 = 2 + 18
11)  (4 + 20 ) · -12 = 4 · -12 + 20 · -12


12)  -14 + 14 = 0
13)  -19/3 · 3/-19 = 1


14)  (14x +21 ) + 17 = 17 + (14x +21 )
15)  12/8 · 8/12 = 1


16)  (23 -23 ) -12 = 23 + (-23 -12 )
17)  (-7 -13 ) -7 = -7 + (-13 -7 )


18)  (-19 · -17 ) · -5 = -19 · (-17 · -5 )
19)  (9x + 7 ) · 1 = (9x + 7 )


20)  (11x +22 ) · -11 = -11 · (11x +22 )
21)  (18 · -8 ) · -11 = 18 · (-8 · -11 )


22)  0 + (-24/16x + 13/3 ) = (-24/16x + 13/3 )
23)  3/16 · 1 = 3/16


24)  (20/21 + -6/1 ) · 5/6 = 20/21 · 5/6 + -6/1 · 5/6
25)  -6/19 + -24/4 = -24/4 + -6/19


26)  0 + (-9/13x - 4/9 ) = (-9/13x - 4/9 )
27)  (-13/16x - -4/14 ) + 10/18 = 10/18 + (-13/16x - -4/14 )


28)  (24/10 + -9/10 ) + -25/12 = 24/10 + (-9/10 + -25/12 )
29)  (-3/19x - -13/6 ) + 0 = (-3/19x - -13/6 )


30)  -23/11 · (6/12x - -11/16 ) = (6/12x - -11/16 ) · -23/11
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