which of the following is true because of the commutative law of multiplication 15*3=45 15*3=40+5 15*3=3*15 15*3=3*3*5​

Question

which of the following is true because of the commutative law of multiplication
15*3=45
15*3=40+5
15*3=3*15
15*3=3*3*5​

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Lệ Thu 5 months 2021-08-27T20:54:13+00:00 1 Answers 11 views 0

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    2021-08-27T20:55:54+00:00

    Answer: Choice C

    Explanation:

    The commutative law of multiplication says that A*B = B*A, for any real numbers A,B. The order of multiplication doesn’t matter.

    That’s why 15*3 is the same as 3*15.

    This is because having 15 groups of 3 leads to 3+3+3+…+3 = 45 (imagine adding 15 copies of ‘3’ together), and having 3 groups of 15 gets us 15+15+15 = 45 as well.

    Or you could picture a rectangular table that has 15 rows and 3 columns. It has 45 inner cells. If the table had 3 rows and 15 columns, then we’d still have 45 inner cells.  

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