Grade 6medium
Evaluating Algebraic Expressions Practice
Practice evaluating algebraic expressions by substituting given values for variables. Replace each variable with its value and calculate the result.
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All 20 Practice Problems
Every question in this set. Solve them on paper, or use the interactive tool above for instant feedback and hints.
- 1.3x + 5 when x = 4
- 2.2y - 7 when y = 10
- 3.4a + 2b when a = 3, b = 5
- 4.x² when x = 5
- 5.3m + 2n when m = 4, n = 3
- 6.5x - 2 when x = 7
- 7.2a² when a = 3
- 8.4p + q when p = 6, q = 8
- 9.x + y + z when x = 2, y = 3, z = 4
- 10.6b - 10 when b = 5
- 11.a² + b² when a = 3, b = 4
- 12.2x + 3y when x = 5, y = 2
- 13.m³ when m = 2
- 14.4c - d when c = 7, d = 3
- 15.xy when x = 6, y = 8
- 16.3a - 2b when a = 8, b = 5
- 17.n² + 5 when n = 4
- 18.2p + 4q - r when p = 3, q = 2, r = 5
- 19.x/2 + 3 when x = 10
- 20.5m - n when m = 6, n = 7
Show answer key
- 1.3x + 5 when x = 4 Answer: 17
- 2.2y - 7 when y = 10 Answer: 13
- 3.4a + 2b when a = 3, b = 5 Answer: 22
- 4.x² when x = 5 Answer: 25
- 5.3m + 2n when m = 4, n = 3 Answer: 18
- 6.5x - 2 when x = 7 Answer: 33
- 7.2a² when a = 3 Answer: 18
- 8.4p + q when p = 6, q = 8 Answer: 32
- 9.x + y + z when x = 2, y = 3, z = 4 Answer: 9
- 10.6b - 10 when b = 5 Answer: 20
- 11.a² + b² when a = 3, b = 4 Answer: 25
- 12.2x + 3y when x = 5, y = 2 Answer: 16
- 13.m³ when m = 2 Answer: 8
- 14.4c - d when c = 7, d = 3 Answer: 25
- 15.xy when x = 6, y = 8 Answer: 48
- 16.3a - 2b when a = 8, b = 5 Answer: 14
- 17.n² + 5 when n = 4 Answer: 21
- 18.2p + 4q - r when p = 3, q = 2, r = 5 Answer: 9
- 19.x/2 + 3 when x = 10 Answer: 8
- 20.5m - n when m = 6, n = 7 Answer: 23
About This Practice
This practice set includes 20 expression evaluation problems. This skill is essential for using formulas and checking solutions to equations.
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