Identifying Variables Worksheet
A Grade 8 math worksheet focusing on identifying variables in algebraic expressions and equations.
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Identifying Variables Worksheet
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Date:
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Read each question carefully and follow the instructions to identify the variables.
1. In the expression 5x + 7, the variable is .
2. An unknown value in an equation is represented by a .
3. In the equation y - 10 = 25, the variable is .
4. The letter 'p' in the formula P = 4s represents a .
5. Which of the following is a variable in the expression 3a + 2b - 1?
3
1
a
2
6. In the equation 2(x + 4) = 18, what is the variable?
2
4
18
x
7. List all the variables in the expression 7c - 4d + e.
8. Explain in your own words what a variable represents in mathematics.
9. A coefficient is the same as a variable.
True
False
10. In the equation A = lw, 'A' and 'l' and 'w' are all variables.
True
False