Simplifying Variable Expressions
5 Questions
| Attempts: 277
Students will be able to define and identify variable expressions, the distributive, commutative, and associative properties; apply the order of operations and sign rules when simplifying variable expressions.
Questions and Answers
- 1.
Variable expressions are mathematical statements that contain:
- A.
Only numbers
- B.
Only letters
- C.
Numbers and letters
- D.
One letter and no numbers
Correct Answer
C. Numbers and letters -
- 2.
Identify the commutative property:
- A.
A + b = a + b
- B.
A + b = b + a
- C.
B + a = a + b
- D.
A + b = 0
Correct Answer
B. A + b = b + a -
- 3.
Simplify - 3x + 5(x - y) - (- x + y)
- A.
- 3x + 6y
- B.
3x - 6y
- C.
6x - 3y
- D.
9xy
Correct Answer
B. 3x - 6y -
- 4.
When simplifying variable expressions, you always use the ____________________________ to determine the value of the expression.
Correct Answer
order of operations - 5.
When simplifying variable expressions explain what it means to combine like terms.
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Dec 14, 2012Quiz Edited by
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Nov 08, 2008Quiz Created by
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