What are the answers to these math property questions?

Ok so I need to know the property of these questions (like distributive, associative, ect.) 1.) 9x2 = 2x9

2.) 9 + 0= 9

3.) 12x1 = 1x12

4.) 1x(2x3) = (1x2)x3

5.) xy=yx

6.) (x + y) + z = x + (y + z)

Please if you know them help!!

Answer #1

im not sure but here goes:

  1. commutative property of multiplication
  2. zero additive property
  3. commutative property of multiplication
  4. the associative property of multiplication
  5. commutative property of multiplication
  6. the associative property of addition.
Answer #2

I AM sureā€¦ and the answers above are correct.

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