# Mini-Quiz: Properties or Laws of Addition and Multiplication

by Ron Kurtus (revised 17 August 2012)

Take this Mini-Quiz to check your understanding of the lesson material.

1. Which of the following is equal to x + z(5 − 2y)?

z(−5 − 2y) + x

z + x(5 − 2y)

z(5 − 2y) + x

2. Which of the following is the same as (2x − 3y) + 2xyz − 7?

2x − (3y + 2xyz) − 7

2x − 3y + (2xyz − 7)

2x − (3y + 2xyz − 7)

3. Which of the following is equal to −7(3 − 2y − z)?

−21 − 14y − 7z

21 + 14y − 7z

−21 + 14y + 7z

If you got all three correct, you are on your way to becoming a Champion in Algebra. If you had problems, you had better look over the material again.

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