Evaluating Expressions Worksheet
This worksheet helps sixth-grade students practice evaluating algebraic expressions by substituting given values for variables and performing operations.
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Standards
Topics
Evaluating Expressions
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Read each question carefully. Substitute the given values for the variables in the expressions and evaluate them.
1. To evaluate an expression, you a number for each variable and then simplify the expression.
2. The order of operations is important when evaluating expressions. It is often remembered by the acronym .
Evaluate each expression for the given value of the variable.
3. Evaluate 5x + 3 when x = 4.
4. Evaluate 12 - 2y when y = 3.
5. Evaluate a² + 7 when a = 5.
6. What is the value of the expression 3(n + 2) when n = 5?
15
17
21
25
7. If m = 10 and p = 2, what is the value of the expression m ÷ p + 8?
13
10
18
26
8. When evaluating 4 + 3 × 2, the answer is 14.
True
False
9. The expression 6/x is undefined when x = 0.
True
False
10. Sarah buys 'p' pencils at $0.50 each and 'e' erasers at $0.25 each. Write an expression for the total cost and then find the total cost if she buys 6 pencils and 4 erasers.