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if you know that 7* 8=56 , how can you use the commutative (Order) Property of Multiplication to find the product of 8*7 ?

  • math -

    you just did. The property means that
    8 * 7
    is exactly the same as
    7 * 8

    In other words the two factors commute, you can change their order without changing their product. This will be true until you get to multiplying matrices.

  • math -

    http://coolmath.com/prealgebra/06-properties/02-properties-commutative-multiplication-02.htm

  • math -

    Remember back when when you were learning addition you had the commutative property of addition which means
    2 + 3
    is the same as
    3 + 2

    Now you are getting the same property for multiplication :)

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